CVE-2026-52961

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 5.5 from GitHub Security Advisory (severity: MODERATE) published 2026-06-24. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-38829 (ENISA EUVD) · GHSA-7c47-vxfh-p7q4 (GitHub Security Advisories)Source: ENISA EUVD

5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

ceph: fix BUG_ON in __ceph_build_xattrs_blob() due to stale blob size

The generic/642 test-case can reproduce the kernel crash:

[40243.605254] ------------[ cut here ]------------ [40243.605956] kernel BUG at fs/ceph/xattr.c:918! [40243.607142] Oops: invalid opcode: 0000 [#1] SMP PTI [40243.608067] CPU: 7 UID: 0 PID: 498762 Comm: kworker/7:1 Not tainted 7.0.0-rc7+ #3 PREEMPT(full) [40243.609700] Hardware name: QEMU Ubuntu 25.10 PC v2 (i440FX + PIIX, + 10.1 machine, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [40243.611820] Workqueue: ceph-msgr ceph_con_workfn [40243.612715] RIP: 0010:__ceph_build_xattrs_blob+0x1b8/0x1e0 [40243.613731] Code: 0f 84 82 fe ff ff e9 cf 8e 56 ff 48 8d 65 e8 31 c0 5b 41 5c 41 5d 5d 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 c3 cc cc cc cc <0f> 0b 4c 8b 62 08 41 8b 85 24 07 00 00 49 83 c4 04 41 89 44 24 fc [40243.616888] RSP: 0018:ffffcc80c4d4b688 EFLAGS: 00010287 [40243.617773] RAX: 0000000000010026 RBX: 0000000000000001 RCX: 0000000000000000 [40243.618928] RDX: ffff8a773798dee0 RSI: 0000000000000000 RDI: 0000000000000000 [40243.620158] RBP: ffffcc80c4d4b6a0 R08: 0000000000000000 R09: 0000000000000000 [40243.621573] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8a75f3b58000 [40243.622907] R13: ffff8a75f3b58000 R14: 0000000000000080 R15: 000000000000bffd [40243.624054] FS: 0000000000000000(0000) GS:ffff8a787d1b4000(0000) knlGS:0000000000000000 [40243.625331] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [40243.626269] CR2: 000072f390b623c0 CR3: 000000011c02a003 CR4: 0000000000372ef0 [40243.627408] Call Trace: [40243.627839] [40243.628188] __prep_cap+0x3fd/0x4a0 [40243.628789] ? do_raw_spin_unlock+0x4e/0xe0 [40243.629474] ceph_check_caps+0x46a/0xc80 [40243.630094] ? __lock_acquire+0x4a2/0x2650 [40243.630773] ? find_held_lock+0x31/0x90 [40243.631347] ? handle_cap_grant+0x79f/0x1060 [40243.632068] ? lock_release+0xd9/0x300 [40243.632696] ? __mutex_unlock_slowpath+0x3e/0x340 [40243.633429] ? lock_release+0xd9/0x300 [40243.634052] handle_cap_grant+0xcf6/0x1060 [40243.634745] ceph_handle_caps+0x122b/0x2110 [40243.635415] mds_dispatch+0x5bd/0x2160 [40243.636034] ? ceph_con_process_message+0x65/0x190 [40243.636828] ? lock_release+0xd9/0x300 [40243.637431] ceph_con_process_message+0x7a/0x190 [40243.638184] ? kfree+0x311/0x4f0 [40243.638749] ? kfree+0x311/0x4f0 [40243.639268] process_message+0x16/0x1a0 [40243.639915] ? sg_free_table+0x39/0x90 [40243.640572] ceph_con_v2_try_read+0xf58/0x2120 [40243.641255] ? lock_acquire+0xc8/0x300 [40243.641863] ceph_con_workfn+0x151/0x820 [40243.642493] process_one_work+0x22f/0x630 [40243.643093] ? process_one_work+0x254/0x630 [40243.643770] worker_thread+0x1e2/0x400 [40243.644332] ? __pfx_worker_thread+0x10/0x10 [40243.645020] kthread+0x109/0x140 [40243.645560] ? __pfx_kthread+0x10/0x10 [40243.646125] ret_from_fork+0x3f8/0x480 [40243.646752] ? __pfx_kthread+0x10/0x10 [40243.647316] ? __pfx_kthread+0x10/0x10 [40243.647919] ret_from_fork_asm+0x1a/0x30 [40243.648556] [40243.648902] Modules linked in: overlay hctr2 libpolyval chacha libchacha adiantum libnh libpoly1305 essiv intel_rapl_msr intel_rapl_common intel_uncore_frequency_common skx_edac_common nfit kvm_intel kvm irqbypass joydev ghash_clmulni_intel aesni_intel rapl input_leds mac_hid psmouse vga16fb serio_raw vgastate floppy i2c_piix4 pata_acpi bochs qemu_fw_cfg i2c_smbus sch_fq_codel rbd dm_crypt msr parport_pc ppdev lp parport efi_pstore [40243.654766] ---[ end trace 0000000000000000 ]---

Commit d93231a6bc8a ("ceph: prevent a client from exceeding the MDS maximum xattr size") moved the required_blob_size computation to before the __build_xattrs() call, introducing a race.

__build_xattrs() releases and reacquires i_ceph_lock during execution. In that window, handle_cap_grant() may update i_xattrs.blob with a newer MDS-provided blob and bump i_xattrs.version. When __bui ---truncated---

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
3rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 24, 2026

Last Modified

November 6, 2026

Advisory Details (4)

Auto-updated Jul 15, 2026
Patch available.
Web page

ceph: fix BUG_ON in __ceph_build_xattrs_blob() due to stale blob size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d5bd8b4e39cfa8b087448adcd48088065cd629d5
Web page

ceph: fix BUG_ON in __ceph_build_xattrs_blob() due to stale blob size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7eb72425c4e3234926502eb262f9d6193ccd572c
Web page

ceph: fix BUG_ON in __ceph_build_xattrs_blob() due to stale blob size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/368d21ae9081c93497b1c8163bed3eddcb2443ff
Web page

ceph: fix BUG_ON in __ceph_build_xattrs_blob() due to stale blob size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0c22d9511cbde746622f8e4c11aaa63fe76d45f9

Vendor Advisories for CVE-2026-52961(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(26)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-11-11ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-11-11ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-11-11ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-11-11ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-11-11ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-11-11ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-11-11ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-11-11ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-11-11ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-11-11ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-11-11ubuntu
ubuntulinux-tools-ibm-edge (6.8.0-1061.62~22.04.1) @ jammy2026-11-11ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-11-11ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-11-11ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-11-11ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-11-11ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-11-11ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-11-11ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-11-11ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-11-11ubuntu
ubuntulinux-tools-azure-edge (7.0.0-1014.14~24.04.1) @ noble2026-11-11ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-11-11ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-11-11ubuntu
ubuntulinux-tools-oracle-edge (7.0.0-1011.11~24.04.1) @ noble2026-11-11ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-11-11ubuntu
linuxKernel @ 6.6.157 (fixes >=6.0.0)—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.3~rc7-1~exp1 (376 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)
  • every version up to 6.12.94-1: fixed in 6.12.94-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (144 versions)
  • every version up to 7.0.10-1: fixed in 7.0.10-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 39× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 261 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 161 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-11-11 07:49 UTCEchelonGraph re-scored
  4. 2026-11-11 07:49 UTCVendor advisory
  5. 2026-11-11 07:48 UTCGHSA enrichmentGHSA-7c47-vxfh-p7q4 · GitHub severity MODERATE · GitHub CVSS 5.5
  6. 2026-11-10 16:44 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  7. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-11-08 16:39 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  9. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-11-06 17:27 UTCEchelonGraph re-scored
  11. 2026-11-06 17:27 UTCVendor advisory
  12. 2026-11-06 17:27 UTCGHSA enrichmentGHSA-7c47-vxfh-p7q4 · GitHub severity MODERATE · GitHub CVSS 5.5
  13. 2026-11-06 16:38 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  14. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  16. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  17. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  18. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  19. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  20. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  21. 2026-10-30 13:33 UTCVendor advisory
  22. 2026-10-30 13:33 UTCGHSA enrichmentGHSA-7c47-vxfh-p7q4 · GitHub CVSS 5.5
  23. 2026-10-30 12:32 UTCEchelonGraph re-scored
  24. 2026-10-30 12:32 UTCVendor advisory
  25. 2026-10-30 12:32 UTCGHSA enrichmentGHSA-7c47-vxfh-p7q4 · GitHub CVSS 5.5
Show 75 more
  1. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  2. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  3. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  4. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  5. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  6. 2026-10-25 14:21 UTCEchelonGraph re-scored
  7. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  8. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-10-22 22:52 UTCEchelonGraph re-scored
  10. 2026-10-22 22:52 UTCVendor advisory
  11. 2026-10-22 22:52 UTCGHSA enrichmentGHSA-7c47-vxfh-p7q4 · GitHub CVSS 5.5
  12. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  13. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  14. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  15. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  16. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  17. 2026-10-18 03:32 UTCEchelonGraph re-scored
  18. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  19. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  20. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  21. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  22. 2026-10-14 05:24 UTCOSV refresh
  23. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  24. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  25. 2026-10-12 15:58 UTCEchelonGraph re-scored
  26. 2026-10-11 19:41 UTCEchelonGraph re-scored
  27. 2026-10-11 16:56 UTCEchelonGraph re-scored
  28. 2026-10-11 14:19 UTCEchelonGraph re-scored
  29. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  30. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  31. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  32. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  33. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  34. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  35. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  36. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  37. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  38. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  39. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  40. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  41. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  42. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  43. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  44. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  45. 2026-09-23 11:45 UTCEchelonGraph re-scored
  46. 2026-09-23 11:45 UTCVendor advisory
  47. 2026-09-23 11:45 UTCGHSA enrichmentGHSA-7c47-vxfh-p7q4 · GitHub CVSS 5.5
  48. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  49. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  50. 2026-09-18 08:08 UTCEchelonGraph re-scored
  51. 2026-09-18 08:08 UTCVendor advisory
  52. 2026-09-18 08:07 UTCGHSA enrichmentGHSA-7c47-vxfh-p7q4 · GitHub CVSS 5.5
  53. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  54. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  55. 2026-09-14 12:35 UTCVendor advisory
  56. 2026-09-14 12:34 UTCGHSA enrichmentGHSA-7c47-vxfh-p7q4 · GitHub CVSS 5.5
  57. 2026-09-14 12:00 UTCEchelonGraph re-scored
  58. 2026-09-14 12:00 UTCVendor advisory
  59. 2026-09-14 12:00 UTCGHSA enrichmentGHSA-7c47-vxfh-p7q4 · GitHub CVSS 5.5
  60. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  61. 2026-09-13 12:01 UTCEchelonGraph re-scored
  62. 2026-09-13 12:01 UTCVendor advisory
  63. 2026-09-13 12:01 UTCGHSA enrichmentGHSA-7c47-vxfh-p7q4 · GitHub CVSS 5.5
  64. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  65. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  66. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  67. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  68. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  69. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  70. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  71. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  72. 2026-08-30 20:19 UTCEchelonGraph re-scored
  73. 2026-08-30 20:19 UTCVendor advisory
  74. 2026-08-30 20:19 UTCGHSA enrichmentGHSA-7c47-vxfh-p7q4 · GitHub CVSS 5.5
  75. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile

Related CVEs(same vendor + same CWE)· as of November 11, 2026

Frequently asked(5)

What is CVE-2026-52961?
CVE-2026-52961 is a medium-severity vulnerability; its CVE record was published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: ceph: fix BUG_ON in __ceph_build_xattrs_blob() due to stale blob size The generic/642 test-case can reproduce the kernel crash: [40243.605254] ------------[ cut here ]------------ [40243.605956] kernel BUG at fs/ceph/xattr.c:918!…
When was the CVE record for CVE-2026-52961 published?
The CVE record for CVE-2026-52961 was published on June 24, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 6, 2026; the record at its source may have been updated since.
Is CVE-2026-52961 actively exploited?
CVE-2026-52961 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-52961?
CVE-2026-52961 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-52961?
A fix for CVE-2026-52961 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-52961 are linked in the Vendor Advisories panel on this page.

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