CVE-2026-1484
Description
A flaw was found in the GLib Base64 encoding routine when processing very large input data. Due to incorrect use of integer types during length calculation, the library may miscalculate buffer boundaries. This can cause memory writes outside the allocated buffer. Applications that process untrusted or extremely large Base64 input using GLib may crash or behave unpredictably.
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-2026-1484
- https://www.suse.com/security/cve/CVE-2026-1484.html
- https://access.redhat.com/security/cve/CVE-2026-1484
- https://bugzilla.redhat.com/show_bug.cgi?id=2433259
- https://gitlab.gnome.org/GNOME/glib/-/issues/3870
- 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.