CVE-2026-1489
Description
A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 2.74.6-2+deb12u9 |
| debian | bullseye | fixed | 2.66.8-1+deb11u8 |
| debian | forky | fixed | 2.86.3-5 |
| debian | sid | fixed | 2.86.3-5 |
| debian | trixie | fixed | 2.84.4-3~deb13u3 |
| sles | affected | |
References
- https://security-tracker.debian.org/tracker/CVE-2026-1489
- https://www.suse.com/security/cve/CVE-2026-1489.html
- https://access.redhat.com/security/cve/CVE-2026-1489
- https://bugzilla.redhat.com/show_bug.cgi?id=2433348
- https://gitlab.gnome.org/GNOME/glib/-/issues/3872
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html
CWEs
CWE-787
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.