CVE-2026-1757
Description
A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where memory allocated for user input is not properly released under certain conditions. When a user submits input consisting only of whitespace, the program skips command execution but fails to free the allocated buffer. Repeating this action causes memory to continuously accumulate. Over time, this can exhaust system memory and terminate the xmllint process, creating a denial-of-service condition on the local system.
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
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.12.7+dfsg+really2.9.14-2.1+deb13u3 |
| sid | Fixed | 2.15.2+dfsg-0.1 |
| forky | Fixed | 2.15.2+dfsg-0.1 |
| bullseye | Fixed | 2.9.10+dfsg-6.7+deb11u10 |
| bookworm | Fixed | 2.9.14+dfsg-1.3~deb12u6 |
Ubuntu Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| resolute | Fixed | 2.15.2+dfsg-0.1ubuntu0.1 |
| questing | Fixed | 2.14.5+dfsg-0.2ubuntu0.2 |
References
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.