CVE-2026-58010

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.9% (56th percentile of EPSS-scored CVEs). GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — Patch released 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: 0.9%CVSS: 8.2Exploit: None knownExposed services: Not assessed

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
8.2HIGHmedium confidence
EG Risk
52
EG Risk 52/100CISA SSVC

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%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.9%
EPSS %ILE
56th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

June 30, 2026

Last Modified

October 2, 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(20)

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

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhai/base-image-cpu-rhel9:17907035902026-10-01redhat
redhatrhai/base-image-cuda-rhel9:17907035862026-10-01redhat
redhatrhai/base-image-tpu-rhel9:17907034972026-10-01redhat
redhatrhai/base-image-spyre-rhel9:17907035682026-10-01redhat
redhatrhai/base-image-rocm-rhel9:17907034942026-10-01redhat
redhatrhai/base-image-rocm-rhel9:17907035062026-10-01redhat
redhatrhai/base-image-tpu-rhel9:17902768842026-09-30redhat
redhatrhai/base-image-spyre-rhel9:17902768892026-09-30redhat
redhatrhai/base-image-rocm-rhel9:17902768862026-09-30redhat
redhatrhai/base-image-cpu-rhel9:17902770452026-09-30redhat
redhatrhaiis/model-opt-cuda-rhel9:17906217142026-09-30redhat
redhatrhaiis/vllm-rocm-rhel9:17906217132026-09-30redhat
redhatrhaiis/vllm-cuda-rhel9:17906217182026-09-30redhat
redhatrhai/base-image-cuda-rhel9:17902769742026-09-30redhat
redhatcert-manager/cert-manager-operator-rhel9:17905898552026-09-28redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17905899122026-09-28redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17902237192026-09-28redhat
redhatcert-manager/cert-manager-operator-rhel9:17902724262026-09-28redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17902232792026-09-28redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17905899142026-09-28redhat
redhatcert-manager/cert-manager-trust-manager-rhel9:17905985932026-09-28redhat
redhatglib2-0:2.68.4-14.el9_4.82026-09-09redhat
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
redhatglib2-0:2.56.4-10.el8_4.72026-09-09redhat
redhatglib2-0:2.56.4-158.el8_6.72026-09-09redhat
redhatrhui5/rhua-rhel9:17888805812026-09-09redhat

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 rangeFix by version rangeDependents
glib2.02.66.8-1 ... 2.89.3-2 (186 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.74.6-2 ... 2.90.0-1 (147 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.84.3-1 ... 2.84.4-3~deb13u3 (6 versions)
  • every version up to 2.84.4-3~deb13u4: fixed in 2.84.4-3~deb13u4
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.84.3-1 ... 2.88.0-1 (37 versions)
  • every version up to 2.88.1-2: fixed in 2.88.1-2
—

Weakness Classification(1)

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

Additional Vendor Advisories

(21)

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 37× in last 7d / 98× 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 379 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

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 on June 30, 2026, with the most recent update on October 2, 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 0.9% probability of exploitation in the next 30 days (56th percentile of EPSS-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?
A fix for CVE-2026-58010 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-58010 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-58010

Explore →

Is Your Infrastructure Affected by CVE-2026-58010?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs