A flaw was found in GLib. An out-of-bounds read of only 2 bytes can occur in the g_date_time_get_ymd function in the glib/gdatetime.c file when an invalid GDateTime object produced by the g_date_time_add_full function is processed. This flaw can corrupt the date output and potentially cause logic errors that may lead to a denial of service.
CVE-2026-58011
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 70% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 65(Attend)EG Risk 65/100SSVC: Attend
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 computedSeverity75% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS PROB
- 0%
- EPSS %ILE
- 30%
- KEV
- Not listed
Published
June 30, 2026
Last Modified
August 25, 2026
Advisory Details (4)
Auto-updated Jun 30, 2026(#YWH-PGM9867-191) OOB Read on GLib through glib/gdatetime.c:g_date_time_get_ymd via invalid `GDateTime` (#3917) · Issues · GNOME / GLib · GitLab
https://gitlab.gnome.org/GNOME/glib/-/work_items/3917(#YWH-PGM9867-191) OOB Read on GLib through glib/gdatetime.c:g_date_time_get_ymd via invalid `GDateTime` (#3917) · Issues · GNOME / GLib · GitLab
https://gitlab.gnome.org/GNOME/glib/-/issues/39172492245 – (CVE-2026-58011) CVE-2026-58011 glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid GDateTime
https://bugzilla.redhat.com/show_bug.cgi?id=2492245Vendor Advisories for CVE-2026-58011(6)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:58981Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat Update Infrastructure 5.3 Technology Preview security update
- RHSA-2026:57015Red Hat Product SecurityMedium
Red Hat Security Advisory: glib2 security update
- RHSA-2026:55440Red Hat Product SecurityMedium
Red Hat Security Advisory: glib2 security update
- RHSA-2026:49512Red Hat Product SecurityHigh
Red Hat Security Advisory: mingw-glib2 security update
- CVE-2026-58011Microsoft Security Response Center (MSRC)Medium
Glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid gdatetime
- GHSA-8xmh-8wfg-9f6jGitHub Security AdvisoriesMedium
A flaw was found in GLib. An out-of-bounds read of only 2 bytes can occur in the...
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | glib2-0:2.80.4-12.el10_2.21 | 2026-08-19 | redhat |
| redhat | glib2-0:2.68.4-19.el9_8.9 | 2026-08-17 | redhat |
| redhat | mingw-glib2-0:2.70.1-9.el8_10 | 2026-08-03 | redhat |
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)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| glib2.0 | 2.66.8-1 ... 2.89.3-2 (186 versions) | — | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| glib2.0 | 2.74.6-2 ... 2.89.3-2 (139 versions) | — | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| glib2.0 | 2.84.3-1 ... 2.89.3-2 (42 versions) | — | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| glib2.0 | 2.84.3-1 ... 2.88.0-1 (35 versions) | 2.88.1-2 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 41× in last 7d / 182× 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 256 total refreshes for this CVE.
- 2026-08-25 13:49 UTCEPSS rescore
- 2026-08-25 10:22 UTCVendor advisory
- 2026-08-25 10:22 UTCGHSA enrichment
- 2026-08-25 09:57 UTCVendor advisory
- 2026-08-25 09:57 UTCGHSA enrichment
- 2026-08-24 23:10 UTCEG score recompute
- 2026-08-24 23:10 UTCVendor advisory
- 2026-08-24 23:10 UTCGHSA enrichment
- 2026-08-24 11:47 UTCEG score recompute
- 2026-08-24 11:47 UTCVendor advisory
- 2026-08-24 11:46 UTCGHSA enrichment
- 2026-08-23 19:50 UTCVendor advisory
- 2026-08-23 19:50 UTCGHSA enrichment
- 2026-08-23 08:27 UTCEG score recompute
- 2026-08-23 08:27 UTCVendor advisory
- 2026-08-23 08:27 UTCGHSA enrichment
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-22 20:39 UTCVendor advisory
- 2026-08-22 20:39 UTCGHSA enrichment
- 2026-08-22 08:29 UTCEG score recompute
- 2026-08-22 08:29 UTCVendor advisory
- 2026-08-22 08:29 UTCGHSA enrichment
- 2026-08-21 23:49 UTCEPSS rescore
- 2026-08-21 17:20 UTCVendor advisory
- 2026-08-21 17:20 UTCGHSA enrichment
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- 2026-08-21 04:51 UTCEG score recompute
- 2026-08-21 04:51 UTCVendor advisory
- 2026-08-21 04:51 UTCGHSA enrichment
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-20 17:06 UTCVendor advisory
- 2026-08-20 17:06 UTCGHSA enrichment
- 2026-08-20 05:43 UTCVendor advisory
- 2026-08-20 05:43 UTCGHSA enrichment
- 2026-08-19 18:19 UTCVendor advisory
- 2026-08-19 18:19 UTCGHSA enrichment
- 2026-08-19 17:53 UTCEG score recompute
- 2026-08-19 17:53 UTCVendor advisory
- 2026-08-19 17:53 UTCGHSA enrichment
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-19 10:27 UTCVendor advisory
- 2026-08-19 10:27 UTCGHSA enrichment
- 2026-08-18 23:05 UTCEG score recompute
- 2026-08-18 23:05 UTCVendor advisory
- 2026-08-18 23:05 UTCGHSA enrichment
- 2026-08-18 13:48 UTCEPSS rescore
- 2026-08-18 06:22 UTCEG score recompute
- 2026-08-18 06:22 UTCVendor advisory
- 2026-08-18 06:22 UTCGHSA enrichment
- 2026-08-17 13:47 UTCEPSS rescore
- 2026-08-17 10:25 UTCVendor advisory
- 2026-08-17 10:25 UTCGHSA enrichment
- 2026-08-17 09:23 UTCVendor advisory
- 2026-08-17 09:23 UTCGHSA enrichment
- 2026-08-17 06:09 UTCVendor advisory
- 2026-08-17 06:09 UTCGHSA enrichment
- 2026-08-16 18:20 UTCEG score recompute
- 2026-08-16 18:20 UTCVendor advisory
- 2026-08-16 18:20 UTCGHSA enrichment
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 06:57 UTCEG score recompute
- 2026-08-16 06:57 UTCVendor advisory
- 2026-08-16 06:57 UTCGHSA enrichment
- 2026-08-16 02:14 UTCEPSS rescore
- 2026-08-15 19:35 UTCVendor advisory
- 2026-08-15 19:35 UTCGHSA enrichment
- 2026-08-15 08:09 UTCEG score recompute
- 2026-08-15 08:09 UTCVendor advisory
- 2026-08-15 08:09 UTCGHSA enrichment
- 2026-08-15 01:30 UTCEPSS rescore
- 2026-08-14 19:41 UTCVendor advisory
- 2026-08-14 19:41 UTCGHSA enrichment
- 2026-08-14 08:19 UTCEG score recompute
- 2026-08-14 08:19 UTCVendor advisory
- 2026-08-14 08:19 UTCGHSA enrichment
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-13 20:56 UTCVendor advisory
- 2026-08-13 20:56 UTCGHSA enrichment
- 2026-08-13 09:33 UTCVendor advisory
- 2026-08-13 09:33 UTCGHSA enrichment
- 2026-08-12 22:10 UTCEG score recompute
- 2026-08-12 22:10 UTCVendor advisory
- 2026-08-12 22:10 UTCGHSA enrichment
- 2026-08-12 13:51 UTCEPSS rescore
- 2026-08-12 10:48 UTCVendor advisory
- 2026-08-12 10:48 UTCGHSA enrichment
- 2026-08-11 23:25 UTCEG score recompute
- 2026-08-11 23:25 UTCVendor advisory
- 2026-08-11 23:25 UTCGHSA enrichment
- 2026-08-11 12:02 UTCVendor advisory
- 2026-08-11 12:02 UTCGHSA enrichment
- 2026-08-11 00:40 UTCEG score recompute
- 2026-08-11 00:40 UTCVendor advisory
- 2026-08-11 00:40 UTCGHSA enrichment
- 2026-08-11 00:00 UTCEPSS rescore
- 2026-08-10 13:17 UTCVendor advisory
- 2026-08-10 13:17 UTCGHSA enrichment
- 2026-08-10 01:55 UTCVendor advisory
- 2026-08-10 01:55 UTCGHSA enrichment
- 2026-08-09 14:32 UTCEG score recompute
- 2026-08-09 14:32 UTCVendor advisory
Frequently asked(5)
What is CVE-2026-58011?
When was CVE-2026-58011 disclosed?
Is CVE-2026-58011 actively exploited?
What is the CVSS score of CVE-2026-58011?
How do I remediate CVE-2026-58011?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-58011
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