CVE-2026-1757
Fixed in a distro release EPSS <1%CVSS 6.2
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.
Products: Red Hat Hardened Images, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat JBoss Core Services, Red Hat OpenShift Container Platform 4
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux 2 | libxml2 | 2.9.1-6.amzn2.5.24 |
| Amazon Linux 2 | libxml2-devel | 2.9.1-6.amzn2.5.24 |
| Amazon Linux 2 | libxml2-python | 2.9.1-6.amzn2.5.24 |
| Amazon Linux 2 | libxml2-static | 2.9.1-6.amzn2.5.24 |
| Amazon Linux 2023 | libxml2 | 2.10.4-1.amzn2023.0.18 |
| Amazon Linux 2023 | libxml2-devel | 2.10.4-1.amzn2023.0.18 |
| Amazon Linux 2023 | libxml2-static | 2.10.4-1.amzn2023.0.18 |
| Amazon Linux 2023 | python3-libxml2 | 2.10.4-1.amzn2023.0.18 |
| Debian 12 | libxml2 | 2.9.14+dfsg-1.3~deb12u6 |
| Debian 13 | libxml2 | 2.12.7+dfsg+really2.9.14-2.1+deb13u3 |
| Debian 14 | libxml2 | 2.15.2+dfsg-0.1 |
| Red Hat hummingbird 1 | libxml2 | 0:2.15.2-0.3.hum1 |
| Red Hat hummingbird 1 | libxml2-16 | 0:2.15.2-0.3.hum1 |
| Red Hat hummingbird 1 | libxml2-devel | 0:2.15.2-0.3.hum1 |
| Red Hat hummingbird 1 | libxml2-static | 0:2.15.2-0.3.hum1 |
| Red Hat hummingbird 1 | python3-libxml2 | 0:2.15.2-0.3.hum1 |
| SUSE Linux Enterprise Micro 5.2 | libxml2 | 2.9.7-150000.3.94.1 |
| SUSE Linux Enterprise Micro 5.2 | python-libxml2-python | 2.9.7-150000.3.94.1 |
| SUSE Linux Enterprise Micro 5.3 | libxml2 | 2.9.14-150400.5.55.1 |
| SUSE Linux Enterprise Micro 5.3 | libxml2-python | 2.9.14-150400.5.55.1 |
| SUSE Linux Enterprise Micro 5.4 | libxml2 | 2.9.14-150400.5.55.1 |
| SUSE Linux Enterprise Micro 5.4 | libxml2-python | 2.9.14-150400.5.55.1 |
| SUSE Linux Enterprise Micro 5.5 | libxml2 | 2.10.3-150500.5.38.1 |
| SUSE Linux Enterprise Micro 5.5 | libxml2-python | 2.10.3-150500.5.38.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | libxml2 | 2.12.10-150700.4.11.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | libxml2-python | 2.12.10-150700.4.11.1 |
| SUSE Linux Enterprise Module for Python 3 15 SP7 | libxml2-python | 2.12.10-150700.4.11.1 |
| SUSE Linux Enterprise Server 16.0 | libxml2 | 2.13.8-160000.4.1 |
| SUSE Linux Enterprise Server 16.0 | libxml2-python | 2.13.8-160000.4.1 |
| SUSE Linux Enterprise Server 16.0 | libxslt | 1.1.43-160000.4.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | libxml2 | 2.9.4-46.99.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python-libxml2 | 2.9.4-46.99.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | libxml2 | 2.13.8-160000.4.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | libxml2-python | 2.13.8-160000.4.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | libxslt | 1.1.43-160000.4.1 |
| SUSE Linux Micro 6.0 | libxml2 | 2.11.6-12.1 |
| SUSE Linux Micro 6.0 | libxml2-python | 2.11.6-12.1 |
| SUSE Linux Micro 6.0 | libxslt | 1.1.38-8.1 |
| SUSE Linux Micro 6.1 | libxml2 | 2.11.6-slfo.1.1_8.1 |
| SUSE Linux Micro 6.1 | libxml2-python | 2.11.6-slfo.1.1_8.1 |
| SUSE Linux Micro 6.1 | libxslt | 1.1.38-slfo.1.1_6.1 |
| SUSE Linux Micro 6.2 | libxml2 | 2.13.8-160000.4.1 |
| SUSE Linux Micro 6.2 | libxml2-python | 2.13.8-160000.4.1 |
| SUSE Linux Micro 6.2 | libxslt | 1.1.43-160000.4.1 |
| Ubuntu 25.10 | libxml2 | 2.14.5+dfsg-0.2ubuntu0.2 |
| Ubuntu 26.04 LTS | libxml2 | 2.15.2+dfsg-0.1ubuntu0.1 |
| openSUSE Leap 15.6 | libxml2 | 2.10.3-150500.5.38.1 |
| openSUSE Leap 15.6 | libxml2-python | 2.10.3-150500.5.38.1 |
| openSUSE Leap 15.6 | python-libxml2-python | 2.9.7-150000.3.94.1 |
| openSUSE Leap 16.0 | libxml2 | 2.13.8-160000.4.1 |
| openSUSE Leap 16.0 | libxml2-python | 2.13.8-160000.4.1 |
| openSUSE Leap 16.0 | libxslt | 1.1.43-160000.4.1 |
| openSUSE Tumbleweed | libxml2 | 2.14.5-3.1 |