CVE-2026-1757: Red Hat Enterprise Linux 10

Medium severity, CVSS 6.2. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Red Hat Red Hat Enterprise Linux 10
• Red Hat Red Hat Enterprise Linux 6
• Red Hat Red Hat Enterprise Linux 7
• Red Hat Red Hat Enterprise Linux 8
• Red Hat Red Hat Enterprise Linux 9
• Red Hat Red Hat Hardened Images: before 2.15.2-0.3.hum1 (fixed in 2.15.2-0.3.hum1)
• Red Hat Red Hat JBoss Core Services
• Red Hat Red Hat Openshift Container Platform 4

Published 2026-02-02. Last modified 2026-09-01.