CVE-2026-1757
Medium
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.
SeverityMedium
CVSS6.2
Exploit probability—
Product
Red Hat Hardened Images
PublishedFeb 2, 2026
First seenFeb 2, 2026
Weakness typeCWE-401CWE-401
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Hardened Images | No range specified | — |
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 8 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 9 | No range specified | — |
| Red Hat Red Hat JBoss Core Services | No range specified | — |
| Red Hat Red Hat OpenShift Container Platform 4 | No range specified | — |
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