CVE-2026-1757 — Missing Release of Memory after Effective Lifetime in Libxml2
Severity
6.2MEDIUMNVD
EPSS
0.0%
top 99.51%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedFeb 2
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 conditio…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 2.5 | Impact: 3.6
Affected Packages2 packages
🔴Vulnerability Details
2OSV▶
CVE-2026-1757: 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 prope↗2026-02-02
GHSA▶
GHSA-7qq5-wfv8-hvvh: 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 prope↗2026-02-02