CVE-2026-1757

libxml2: A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where memory allo...

CVE-2026-1757 is fixed in 12 products on 1 platform, first by DEBIAN-CVE-2026-1757, released February 2, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
6.2
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0022
12th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
libxml2 · Debian 12.15 (bookworm) 2.9.14+dfsg-1.3~deb12u6 DEBIAN-CVE-2026-1757 Feb 2, 2026
libxml2 · Debian 13.5 (trixie) 2.12.7+dfsg+really2.9.14-2.1+deb13u3 DEBIAN-CVE-2026-1757 Feb 2, 2026
libxml2 · Debian 14 2.15.2+dfsg-0.1 DEBIAN-CVE-2026-1757 Feb 2, 2026
libxml2 · amzn 2023 2.10.4-1.amzn2023.0.18 ALAS2023-2026-1446 Mar 2, 2026
libxml2 · opensuse-leap 15.6 2.10.3-150500.5.38.1 SUSE-SU-2026:0570-1 Feb 17, 2026
libxml2 · opensuse-leap 16.0 2.13.8-160000.4.1 OPENSUSE-SU-2026:20312-1 Mar 4, 2026
libxml2 · sles 15.7 2.12.10-150700.4.11.1 SUSE-SU-2026:0605-1 Feb 24, 2026
libxml2 · sles 16.0 2.13.8-160000.4.1 SUSE-SU-2026:20631-1 Mar 4, 2026
libxml2-16 · Ubuntu 25.10 (questing) 2.14.5+dfsg-0.2ubuntu0.2 libxml2-16 2.14.5+dfsg-0.2ubuntu0.2 Apr 23, 2026
libxml2-debuginfo · amzn 2023 2.10.4-1.amzn2023.0.18 ALAS2023-2026-1446 Mar 2, 2026
libxml2-debugsource · amzn 2023 2.10.4-1.amzn2023.0.18 ALAS2023-2026-1446 Mar 2, 2026
libxml2-devel · amzn 2023 2.10.4-1.amzn2023.0.18 ALAS2023-2026-1446 Mar 2, 2026
libxml2-python · opensuse-leap 15.6 2.10.3-150500.5.38.1 SUSE-SU-2026:0570-1 Feb 17, 2026
libxml2-python · opensuse-leap 16.0 2.13.8-160000.4.1 OPENSUSE-SU-2026:20312-1 Mar 4, 2026
libxml2-python · sles 15.7 2.12.10-150700.4.11.1 SUSE-SU-2026:0605-1 Feb 24, 2026
libxml2-python · sles 16.0 2.13.8-160000.4.1 SUSE-SU-2026:20631-1 Mar 4, 2026
libxml2-static · amzn 2023 2.10.4-1.amzn2023.0.18 ALAS2023-2026-1446 Mar 2, 2026
libxml2-utils · Ubuntu 25.10 (questing) 2.14.5+dfsg-0.2ubuntu0.2 libxml2-utils 2.14.5+dfsg-0.2ubuntu0.2 Apr 23, 2026
libxslt · opensuse-leap 16.0 1.1.43-160000.4.1 OPENSUSE-SU-2026:20312-1 Mar 4, 2026
libxslt · sles 16.0 1.1.43-160000.4.1 SUSE-SU-2026:20631-1 Mar 4, 2026
python-libxml2-python · opensuse-leap 15.6 2.9.7-150000.3.94.1 SUSE-SU-2026:0568-1 Feb 17, 2026
python3-libxml2 · Ubuntu 25.10 (questing) 2.14.5+dfsg-0.2ubuntu0.2 python3-libxml2 2.14.5+dfsg-0.2ubuntu0.2 Apr 23, 2026
python3-libxml2 · amzn 2023 2.10.4-1.amzn2023.0.18 ALAS2023-2026-1446 Mar 2, 2026
python3-libxml2-debuginfo · amzn 2023 2.10.4-1.amzn2023.0.18 ALAS2023-2026-1446 Mar 2, 2026

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