PT-2026-5655 · Libxml2 · Libxml2

Lanbigking · Published 2026-01-01 · Updated 2026-04-29 · CVE-2026-1757

Positive Technologies (AI Summary)

CVSS v3.1

6.2

Medium

Base vector

AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions libxml2 versions (affected versions not specified)

Description A memory leak exists in the interactive shell of the xmllint utility. When a user provides input containing only whitespace, the program does not release the allocated memory buffer, leading to continuous memory accumulation. Repeated execution of this scenario can exhaust system memory, resulting in a denial-of-service condition on the local system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2026-1757

ECHO-C488-0C15-5961

OESA-2026-1774

OPENSUSE-SU-2026:10167-1

OPENSUSE-SU-2026:20312-1

RHSA-2026:7519

SUSE-SU-2026:0568-1

SUSE-SU-2026:0570-1

SUSE-SU-2026:0605-1

SUSE-SU-2026:0606-1

SUSE-SU-2026:0782-1

SUSE-SU-2026:20631-1

SUSE-SU-2026:20647-1

SUSE-SU-2026:20657-1

SUSE-SU-2026:20707-1

Affected Products

Libxml2

References · 63

• https://osv.dev/vulnerability/SUSE-SU-2026:0605-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-1757 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-1757 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-1757 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-1757 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-1774 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:7519 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-1757 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:20631-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20657-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:20312-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0570-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10167-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20707-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0782-1 · Vendor Advisory