CVE-2026-58010

HIGHNVD 8.28.2
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.5% (42nd percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 6.5 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-06-30) is not newer than that change (2026-10-29), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week

Also known asEUVD-2026-40312 (ENISA EUVD) · GHSA-m7rp-473c-296x (GitHub Security Advisories)Source: ENISA EUVD

8.2EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%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 52/100

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)
Severity82% × 45%
Impact severity (EG Severity): CVSS 8.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
42nd
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 (8.2): severity, escalated by confirmed exploitation. This CVE's 8.2 is its impact severity (EG Severity), not escalated.

EG Severity
8.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). 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 low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days 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 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). 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)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (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 30, 2026

Last Modified

October 29, 2026

Advisory Details (3)

Auto-updated Jun 30, 2026
Patch available. Sources: redhat.
Web page

(#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
Red Hat

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
Red HatMentions a patch (unverified)

cve-details

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

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcert-manager/cert-manager-operator-bundle:17919704842026-10-14redhat
redhatcert-manager/cert-manager-operator-bundle:17919662592026-10-14redhat
redhatrhaii/vllm-cuda-rhel9:17914736312026-10-13redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17914597112026-10-13redhat
redhatrhaii/vllm-rocm-rhel9:17914258692026-10-13redhat
redhatrhaii/model-opt-cuda-rhel9:17918038212026-10-13redhat
redhatrhaii/vllm-cpu-rhel9:17914736142026-10-13redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17913783952026-10-13redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17913710692026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17917882872026-10-13redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17914597592026-10-13redhat
redhatrhaii/vllm-spyre-rhel9:17918183572026-10-13redhat
redhatrhaii/vllm-gaudi-rhel9:17914271822026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17890290762026-10-13redhat
redhatrhai/base-image-cuda-12.9-rhel9:17912319262026-10-12redhat
redhatrhai/base-image-cuda-13.0-rhel9:17912320482026-10-12redhat
redhatrhai/base-image-neuron-rhel9:17907035572026-10-05redhat
redhatrhai/base-image-spyre-rhel9:17907036302026-10-05redhat
redhatrhai/base-image-cpu-rhel9:17907036562026-10-05redhat
redhatrhai/base-image-cuda-13.0-rhel9:17907036452026-10-05redhat
redhatrhai/base-image-tpu-rhel9:17907035542026-10-05redhat
redhatrhai/base-image-cuda-12.9-rhel9:17907037062026-10-05redhat
redhatrhai/base-image-rocm-7.14-rhel9:17907035542026-10-05redhat
redhatrhai/base-image-rubin-rhel9:17907037072026-10-05redhat
redhatrhai/base-image-rocm-rhel9:17907035062026-10-01redhat
redhatrhai/base-image-tpu-rhel9:17907034972026-10-01redhat
redhatrhai/base-image-neuron-rhel9:17907035422026-10-01redhat
redhatrhai/base-image-rocm-7.1-rhel9:17907035412026-10-01redhat
redhatrhai/base-image-cpu-rhel9:17907036312026-10-01redhat
redhatrhai/base-image-rocm-6.4-rhel9:17907035452026-10-01redhat

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.

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 15× in last 7d / 82× 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 it from the CNA feed. 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). Most recent first.

Showing the most recent 100 of 461 refreshes 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 361 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  4. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  5. 2026-10-29 23:26 UTCVendor advisory
  6. 2026-10-29 23:26 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  7. 2026-10-29 22:31 UTCEG score recompute
  8. 2026-10-29 22:31 UTCVendor advisory
  9. 2026-10-29 22:31 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  10. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-10-28 12:06 UTCEG score recompute
  13. 2026-10-28 12:06 UTCVendor advisory
  14. 2026-10-28 12:06 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  15. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  16. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  18. 2026-10-25 14:17 UTCEG score recompute
  19. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  20. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  21. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  22. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  23. 2026-10-21 12:01 UTCEG score recompute
  24. 2026-10-21 12:01 UTCVendor advisory
  25. 2026-10-21 12:01 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
Show 75 more
  1. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  4. 2026-10-18 03:28 UTCEG score recompute
  5. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  6. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  7. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  8. 2026-10-14 20:33 UTCVendor advisory
  9. 2026-10-14 20:33 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  10. 2026-10-14 19:38 UTCEG score recompute
  11. 2026-10-14 19:38 UTCVendor advisory
  12. 2026-10-14 19:38 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  13. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  14. 2026-10-14 03:29 UTCVendor advisory
  15. 2026-10-14 03:29 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  16. 2026-10-14 03:15 UTCVendor advisory
  17. 2026-10-14 03:15 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  18. 2026-10-14 02:41 UTCEG score recompute
  19. 2026-10-14 02:41 UTCVendor advisory
  20. 2026-10-14 02:41 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  21. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  22. 2026-10-13 09:28 UTCVendor advisory
  23. 2026-10-13 09:28 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  24. 2026-10-13 09:09 UTCEG score recompute
  25. 2026-10-13 09:09 UTCVendor advisory
  26. 2026-10-13 09:09 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  27. 2026-10-12 21:27 UTCVendor advisory
  28. 2026-10-12 21:26 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  29. 2026-10-12 21:03 UTCEG score recompute
  30. 2026-10-12 21:03 UTCVendor advisory
  31. 2026-10-12 21:03 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  32. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  33. 2026-10-12 15:53 UTCEG score recompute
  34. 2026-10-11 19:37 UTCEG score recompute
  35. 2026-10-11 16:52 UTCEG score recompute
  36. 2026-10-11 14:14 UTCEG score recompute
  37. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  38. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  39. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  40. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  41. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  42. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  43. 2026-10-06 03:19 UTCVendor advisory
  44. 2026-10-06 03:19 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  45. 2026-10-06 03:19 UTCVendor advisory
  46. 2026-10-06 03:19 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  47. 2026-10-06 03:18 UTCVendor advisory
  48. 2026-10-06 03:18 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  49. 2026-10-06 02:35 UTCEG score recompute
  50. 2026-10-06 02:35 UTCVendor advisory
  51. 2026-10-06 02:35 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  52. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  53. 2026-10-05 11:30 UTCVendor advisory
  54. 2026-10-05 11:30 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  55. 2026-10-05 11:03 UTCEG score recompute
  56. 2026-10-05 11:03 UTCVendor advisory
  57. 2026-10-05 11:02 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  58. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  59. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  60. 2026-10-02 03:30 UTCVendor advisory
  61. 2026-10-02 03:29 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  62. 2026-10-02 02:39 UTCEG score recompute
  63. 2026-10-02 02:39 UTCVendor advisory
  64. 2026-10-02 02:39 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  65. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  66. 2026-10-01 18:31 UTCVendor advisory
  67. 2026-10-01 18:31 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  68. 2026-10-01 17:21 UTCVendor advisory
  69. 2026-10-01 17:21 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  70. 2026-09-30 17:28 UTCVendor advisory
  71. 2026-09-30 17:28 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  72. 2026-09-30 16:51 UTCEG score recompute
  73. 2026-09-30 16:51 UTCVendor advisory
  74. 2026-09-30 16:51 UTCGHSA enrichmentGHSA-m7rp-473c-296x · GitHub CVSS 6.5
  75. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.9% · 56th percentile

Frequently asked(5)

What is CVE-2026-58010?
CVE-2026-58010 is a high-severity vulnerability; its CVE record was published on June 30, 2026. 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…
When was CVE-2026-58010 made public?
CVE-2026-58010 was made public on March 26, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on June 30, 2026. EchelonGraph's copy of the record carries a last-modified date of October 29, 2026; the record at its source may have been updated since.
Is CVE-2026-58010 actively exploited?
CVE-2026-58010 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd 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

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