CVE-2026-22990

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-01-23. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

libceph: replace overzealous BUG_ON in osdmap_apply_incremental()

If the osdmap is (maliciously) corrupted such that the incremental osdmap epoch is different from what is expected, there is no need to BUG. Instead, just declare the incremental osdmap to be invalid.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

January 23, 2026

Last Modified

August 5, 2026

Advisory Details (7)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

libceph: replace overzealous BUG_ON in osdmap_apply_incremental() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e00c3f71b5cf75681dbd74ee3f982a99cb690c2b
generic

libceph: replace overzealous BUG_ON in osdmap_apply_incremental() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6348d70af847b79805374fe628d3809a63fd7df3
generic

libceph: replace overzealous BUG_ON in osdmap_apply_incremental() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6c6cec3db3b418c4fdf815731bc39e46dff75e1b
generic

libceph: replace overzealous BUG_ON in osdmap_apply_incremental() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d3613770e2677683e65d062da5e31f48c409abe9
generic

libceph: replace overzealous BUG_ON in osdmap_apply_incremental() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6afd2a4213524bc742b709599a3663aeaf77193c
generic

libceph: replace overzealous BUG_ON in osdmap_apply_incremental() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4b106fbb1c7b841cd402abd83eb2447164c799ea
generic

libceph: replace overzealous BUG_ON in osdmap_apply_incremental() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9aa0b0c14cefece078286d78b97d4c09685e372d

Patch Availability(31)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:6.12.0-55.95.1.el10_02026-08-10redhat
ubuntulinux-tools-azure-edge (6.8.0-1059.65~22.04.1) @ jammy2026-08-05ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1021.21~24.04.1) @ noble2026-08-05ubuntu
ubuntulinux-tools-oracle-64k-6.17 (6.17.0-1019.19~24.04.3+1) @ noble2026-08-05ubuntu
ubuntulinux-tools-azure-fde-6.17 (6.17.0-1018.18~24.04.1) @ noble2026-08-05ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1024.24) @ noble2026-08-05ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1094.98) @ jammy2026-08-05ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1054.57~22.04.1) @ jammy2026-08-05ubuntu
ubuntulinux-virtual-6.8 (6.8.0-117.117) @ noble2026-08-05ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1056.62) @ noble2026-08-05ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-116.116+fips1) @ noble2026-08-05ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1059.65+fips1) @ noble2026-08-05ubuntu
ubuntulinux-tools-nvidia-tegra-igx-rt-5.15 (5.15.0.1044.46) @ jammy2026-08-05ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1054.57.1) @ noble2026-08-05ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1097.95) @ jammy2026-08-05ubuntu
ubuntulinux-tools-realtime-5.15 (5.15.0.1102.106) @ jammy2026-08-05ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1109.94) @ jammy2026-08-05ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1109.107) @ jammy2026-08-05ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1110.119~20.04.1) @ focal2026-08-05ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1067 (5.15.0-1067.71) @ jammy2026-08-05ubuntu
redhatkernel-0:4.18.0-305.197.1.el8_42026-07-06redhat
redhatkernel-0:4.18.0-372.198.1.el8_62026-07-01redhat
redhatkernel-0:5.14.0-427.132.1.el9_42026-06-22redhat
redhatkernel-0:5.14.0-284.176.1.el9_22026-06-17redhat
redhatkernel-0:4.18.0-477.147.1.el8_82026-06-17redhat
redhatkernel-rt-0:5.14.0-284.176.1.rt14.461.el9_22026-06-17redhat
redhatkernel-0:5.14.0-570.120.1.el9_62026-06-11redhat
redhatkernel-rt-0:4.18.0-553.132.1.rt7.473.el8_102026-06-10redhat
redhatkernel-0:4.18.0-553.132.1.el8_102026-06-10redhat
redhatkernel-0:5.14.0-687.10.1.el9_82026-05-20redhat
linuxKernel @ 5.10.248osv

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

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (48 versions)5.10.249-1
linux-6.16.1.106-3~deb11u1 ... 6.1.159-1~deb11u1 (14 versions)6.1.162-1~deb11u1
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (46 versions)6.1.162-1
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.69-1~bpo12+1 (10 versions)6.12.69-1
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.18~rc7-1~exp1 (96 versions)6.18.8-1

Weakness Classification(1)

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

Additional Vendor Advisories

(13)

Data Freshness Timeline

(refreshed 6× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 196 total refreshes for this CVE.

  1. 2026-09-19 01:06 UTCOSV refresh
  2. 2026-09-18 19:27 UTCEPSS rescore
  3. 2026-09-16 14:07 UTCEPSS rescore
  4. 2026-09-16 05:15 UTCEPSS rescore
  5. 2026-09-13 16:47 UTCEPSS rescore
  6. 2026-09-12 15:01 UTCEPSS rescore
  7. 2026-09-11 14:52 UTCEPSS rescore
  8. 2026-09-10 09:34 UTCEPSS rescore
  9. 2026-09-08 22:00 UTCEPSS rescore
  10. 2026-09-07 16:01 UTCEPSS rescore
  11. 2026-09-06 13:47 UTCEPSS rescore
  12. 2026-09-06 13:47 UTCEPSS rescore
  13. 2026-09-04 05:06 UTCEPSS rescore
  14. 2026-09-02 14:11 UTCEPSS rescore
  15. 2026-09-01 13:53 UTCEPSS rescore
  16. 2026-09-01 04:39 UTCEPSS rescore
  17. 2026-08-31 04:54 UTCOSV refresh
  18. 2026-08-30 19:17 UTCEPSS rescore
  19. 2026-08-30 01:22 UTCEPSS rescore
  20. 2026-08-28 21:41 UTCEPSS rescore
  21. 2026-08-27 14:25 UTCEPSS rescore
  22. 2026-08-26 14:46 UTCEPSS rescore
  23. 2026-08-25 13:48 UTCEPSS rescore
  24. 2026-08-23 00:19 UTCEPSS rescore
  25. 2026-08-21 23:49 UTCEPSS rescore
Show 75 more
  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-19 17:03 UTCEPSS rescore
  3. 2026-08-18 13:48 UTCEPSS rescore
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-16 14:56 UTCEPSS rescore
  6. 2026-08-16 02:14 UTCEPSS rescore
  7. 2026-08-15 01:30 UTCEPSS rescore
  8. 2026-08-14 12:28 UTCEG score recompute
  9. 2026-08-14 12:28 UTCVendor advisory
  10. 2026-08-14 12:28 UTCGHSA enrichment
  11. 2026-08-13 22:00 UTCEPSS rescore
  12. 2026-08-13 04:57 UTCEG score recompute
  13. 2026-08-13 04:57 UTCVendor advisory
  14. 2026-08-13 04:57 UTCGHSA enrichment
  15. 2026-08-12 13:50 UTCEPSS rescore
  16. 2026-08-11 13:42 UTCEPSS rescore
  17. 2026-08-11 00:00 UTCEPSS rescore
  18. 2026-08-09 18:27 UTCEG score recompute
  19. 2026-08-09 18:27 UTCVendor advisory
  20. 2026-08-09 18:27 UTCGHSA enrichment
  21. 2026-08-09 13:46 UTCEPSS rescore
  22. 2026-08-08 16:37 UTCEPSS rescore
  23. 2026-08-07 23:39 UTCEG score recompute
  24. 2026-08-07 23:39 UTCVendor advisory
  25. 2026-08-07 23:39 UTCGHSA enrichment
  26. 2026-08-06 13:46 UTCEPSS rescore
  27. 2026-08-05 19:17 UTCEPSS rescore
  28. 2026-08-05 12:46 UTCEG score recompute
  29. 2026-08-05 12:46 UTCVendor advisory
  30. 2026-08-05 12:46 UTCGHSA enrichment
  31. 2026-08-04 15:10 UTCEPSS rescore
  32. 2026-08-04 10:38 UTCEPSS rescore
  33. 2026-08-03 10:35 UTCEPSS rescore
  34. 2026-08-02 22:13 UTCEG score recompute
  35. 2026-08-02 22:13 UTCVendor advisory
  36. 2026-08-02 22:13 UTCGHSA enrichment
  37. 2026-08-02 02:26 UTCEPSS rescore
  38. 2026-08-01 04:15 UTCEPSS rescore
  39. 2026-07-31 07:42 UTCOSV refresh
  40. 2026-07-30 01:30 UTCEPSS rescore
  41. 2026-07-27 14:13 UTCEPSS rescore
  42. 2026-07-26 14:54 UTCEPSS rescore
  43. 2026-07-26 14:54 UTCEPSS rescore
  44. 2026-07-25 14:17 UTCEPSS rescore
  45. 2026-07-25 14:17 UTCEPSS rescore
  46. 2026-07-24 14:17 UTCEPSS rescore
  47. 2026-07-23 14:18 UTCEPSS rescore
  48. 2026-07-23 14:18 UTCEPSS rescore
  49. 2026-07-23 03:06 UTCEG score recompute
  50. 2026-07-22 14:08 UTCEPSS rescore
  51. 2026-07-21 15:24 UTCEPSS rescore
  52. 2026-07-21 15:24 UTCEPSS rescore
  53. 2026-07-20 17:08 UTCEPSS rescore
  54. 2026-07-19 14:31 UTCEPSS rescore
  55. 2026-07-19 14:31 UTCEPSS rescore
  56. 2026-07-19 02:29 UTCEPSS rescore
  57. 2026-07-19 02:28 UTCEPSS rescore
  58. 2026-07-18 10:04 UTCEPSS rescore
  59. 2026-07-18 10:04 UTCEPSS rescore
  60. 2026-07-16 17:03 UTCEPSS rescore
  61. 2026-07-16 17:03 UTCEPSS rescore
  62. 2026-07-15 16:57 UTCEPSS rescore
  63. 2026-07-15 16:57 UTCEPSS rescore
  64. 2026-07-15 02:00 UTCEPSS rescore
  65. 2026-07-15 02:00 UTCEPSS rescore
  66. 2026-07-13 22:30 UTCEPSS rescore
  67. 2026-07-13 15:37 UTCOSV refresh
  68. 2026-07-13 06:13 UTCEPSS rescore
  69. 2026-07-13 06:13 UTCEPSS rescore
  70. 2026-07-12 05:46 UTCEPSS rescore
  71. 2026-07-12 05:46 UTCEPSS rescore
  72. 2026-07-11 08:27 UTCEPSS rescore
  73. 2026-07-09 19:10 UTCEPSS rescore
  74. 2026-07-08 15:15 UTCEPSS rescore
  75. 2026-07-08 15:15 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-22990?
CVE-2026-22990 is a medium vulnerability published on January 23, 2026. In the Linux kernel, the following vulnerability has been resolved: libceph: replace overzealous BUGON in osdmapapply_incremental() If the osdmap is (maliciously) corrupted such that the incremental osdmap epoch is different from what is expected, there is no need to BUG. Instead, just declare the…
When was CVE-2026-22990 disclosed?
CVE-2026-22990 was first published in the National Vulnerability Database on January 23, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-22990 actively exploited?
CVE-2026-22990 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 70.8% of all scored CVEs.
What is the CVSS score of CVE-2026-22990?
CVE-2026-22990 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-22990?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-22990, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-22990

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