DEBIAN-CVE-2026-1757
Record from OSV · Published February 2, 2026
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| libxml2 | Debian:12 | 2.9.14+dfsg-1.3~deb12u6 |
| libxml2 | Debian:14 | 2.15.2+dfsg-0.1 |
| libxml2 | Debian:13 | 2.12.7+dfsg+really2.9.14-2.1+deb13u3 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | libxml2 | 2.9.14+dfsg-1.3~deb12u5, 2.9.14+dfsg-1.3~deb12u4, 2.9.14+dfsg-1.3~deb12u3 |
| Debian:14 | libxml2 | 2.14.3+dfsg-0exp1, 2.14.3+dfsg-0exp2, 2.14.3+dfsg-0exp3 |
| Debian:13 | libxml2 | 2.12.7+dfsg+really2.9.14-2.1+deb13u2, 2.12.7+dfsg+really2.9.14-2.1+deb13u1, 2.12.7+dfsg+really2.9.14-2.1 |
Timeline
- Feb 2, 2026 CVE Published
- Oct 1, 2026 CVE Updated
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