CVE-2026-58010

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 59% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in GLib. An off-by-one error can occur in the gvs_tuple_is_normal function in the glib/gvariant-serialiser.c file when doing an alignment padding check because the bounds check uses > instead of >=, causing an out-of-bounds read of only 1 byte. This issue can cause a minor information disclosure of 1 byte and a denial of service when the out-of-bounds read crosses a page boundary.

CVSS v3
8.2
EG Score
8.2(medium)
EG Risk
52(Track)
EG Risk 52/100SSVC: 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
Severity82% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

June 30, 2026

Last Modified

September 10, 2026

Advisory Details (3)

Auto-updated Jun 30, 2026
🔬 Proof of concept available. Patch available. Sources: redhat.
generic🟡 PoC Available

(#YWH-PGM9867-190) Buffer Over-read on GLib through glib/gvariant-serialiser.c:1253 via gvs_tuple_is_normal() (#3915) · Issues · GNOME / GLib · GitLab

https://gitlab.gnome.org/GNOME/glib/-/issues/3915
redhat

2492243 – (CVE-2026-58010) CVE-2026-58010 glib: buffer over-read in glib/gvariant-serialiser.c via gvs_tuple_is_normal()

https://bugzilla.redhat.com/show_bug.cgi?id=2492243
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-58010

Vendor Advisories for CVE-2026-58010(12)

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

Patch Availability(18)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhui5/rhua-rhel9:17888805812026-09-09redhat
redhatglib2-0:2.56.4-10.el8_4.72026-09-09redhat
redhatglib2-0:2.68.4-14.el9_4.82026-09-09redhat
redhatglib2-0:2.56.4-158.el8_6.72026-09-09redhat
redhatglib2-0:2.56.4-165.el8_8.22026-09-09redhat
redhatglib2-0:2.68.4-16.el9_6.72026-09-09redhat
redhatglib2-0:2.80.4-4.el10_0.172026-09-09redhat
redhatglib2-0:2.56.1-13.el7_9.12026-09-09redhat
redhatglib2-0:2.68.4-7.el9_2.72026-09-09redhat
redhatcert-manager/cert-manager-operator-rhel9:17883485222026-09-03redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17883485712026-09-03redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17883485942026-09-03redhat
redhatglib2-0:2.56.4-177.el8_102026-08-31redhat
redhatdiscovery/discovery-ui-rhel9:17882061962026-08-31redhat
redhatrhui5/rhua-tp-rhel9:17872412602026-08-24redhat
redhatglib2-0:2.80.4-12.el10_2.212026-08-19redhat
redhatglib2-0:2.68.4-19.el9_8.92026-08-17redhat
redhatmingw-glib2-0:2.70.1-9.el8_102026-08-03redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
glib2.02.66.8-1 ... 2.89.3-2 (186 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
glib2.02.74.6-2 ... 2.89.4-2 (146 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
glib2.02.84.3-1 ... 2.89.4-2 (49 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
glib2.02.84.3-1 ... 2.88.0-1 (37 versions)2.88.1-2—

Weakness Classification(1)

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

Additional Vendor Advisories

(8)

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 17× in last 7d / 102× 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 328 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-58010?
CVE-2026-58010 is a high vulnerability published on June 30, 2026. A flaw was found in GLib. An off-by-one error can occur in the gvstupleis_normal function in the glib/gvariant-serialiser.c file when doing an alignment padding check because the bounds check uses > instead of >=, causing an out-of-bounds read of only 1 byte. This issue can cause a minor…
When was CVE-2026-58010 disclosed?
CVE-2026-58010 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58010 actively exploited?
CVE-2026-58010 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 58.8% of all scored CVEs.
What is the CVSS score of CVE-2026-58010?
CVE-2026-58010 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-58010?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58010, 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

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