CVE-2026-58011: gnome glib Out-of-bounds Read
Vulnerability summary
CVE-2026-58011 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in gnome glib. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.6% of scored vulnerabilities. 2 public exploits are recorded.
Advisory lineage
Upstream 0 · Downstream 21 · Related 9Timeline
- 30-06-2026PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 4 sources · 1 version- CVE.orgCNA6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.47%
Chance of exploitation in the next 30 days
Percentile
40%
Versus all other CVEs
30-day change
0.00 pp
From 0.47% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (gitlab.gnome.org)
Maturity: unknown
Exploit Reference (gitlab.gnome.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- glib2.0All versions (No fix recorded) | < 2.84.4-3~deb13u4 | < 2.88.1-2
Gnome1 product
- glib< 2.88.1 | < 2.86.5 | 2.88.0
Redhat1 product
- enterprise_linuxEOL6.0 | 7.0 | 8.0 | 9.0 | 10.0
Ubuntu1 product
- glib2.0< 2.40.2-0ubuntu1.1+esm8 | < 2.48.2-0ubuntu4.8+esm6 | < 2.56.4-0ubuntu0.18.04.9+esm6 | < 2.64.6-1~ubuntu20.04.9+esm2 | < 2.72.4-0ubuntu2.10 | < 2.80.0-6ubuntu3.9 | All versions (No fix recorded) | < 2.88.0-1ubuntu0.1
4 vendors · 4 products
