CVE-2026-6653
Fixed in a distro release EPSS <1%CVSS 7.0
Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handling.
Products: GNOME libxml2
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 8 | libxml2 | 2.9.7-21.el8_10.8 |
| AlmaLinux 8 | libxml2-devel | 2.9.7-21.el8_10.8 |
| AlmaLinux 8 | python3-libxml2 | 2.9.7-21.el8_10.8 |
| AlmaLinux 9 | libxml2 | 2.9.13-14.el9_8.4 |
| AlmaLinux 9 | libxml2-devel | 2.9.13-14.el9_8.4 |
| AlmaLinux 9 | python3-libxml2 | 2.9.13-14.el9_8.4 |
| Amazon Linux 2 | libxml2 | 2.9.1-6.amzn2.5.25 |
| Amazon Linux 2 | libxml2-devel | 2.9.1-6.amzn2.5.25 |
| Amazon Linux 2 | libxml2-python | 2.9.1-6.amzn2.5.25 |
| Amazon Linux 2 | libxml2-static | 2.9.1-6.amzn2.5.25 |
| Amazon Linux 2023 | libxml2 | 2.10.4-1.amzn2023.0.19 |
| Amazon Linux 2023 | libxml2-devel | 2.10.4-1.amzn2023.0.19 |
| Amazon Linux 2023 | libxml2-static | 2.10.4-1.amzn2023.0.19 |
| Amazon Linux 2023 | python3-libxml2 | 2.10.4-1.amzn2023.0.19 |
| Debian 12 | libxml2 | no fix |
| Debian 13 | libxml2 | no fix |
| Debian 14 | libxml2 | 2.14.5+dfsg-0.1 |
| Red Hat Enterprise Linux 8 | libxml2 | 0:2.9.7-21.el8_10.8 |
| Red Hat Enterprise Linux 8 | libxml2-debuginfo | 0:2.9.7-21.el8_10.8 |
| Red Hat Enterprise Linux 8 | libxml2-debugsource | 0:2.9.7-21.el8_10.8 |
| Red Hat Enterprise Linux 8 | libxml2-devel | 0:2.9.7-21.el8_10.8 |
| Red Hat Enterprise Linux 8 | python3-libxml2 | 0:2.9.7-21.el8_10.8 |
| Red Hat Enterprise Linux 8 | python3-libxml2-debuginfo | 0:2.9.7-21.el8_10.8 |
| Red Hat Enterprise Linux 9 | libxml2 | 0:2.9.13-14.el9_8.4 |
| Red Hat Enterprise Linux 9 | libxml2-debuginfo | 0:2.9.13-14.el9_8.4 |
| Red Hat Enterprise Linux 9 | libxml2-debugsource | 0:2.9.13-14.el9_8.4 |
| Red Hat Enterprise Linux 9 | libxml2-devel | 0:2.9.13-14.el9_8.4 |
| Red Hat Enterprise Linux 9 | python3-libxml2 | 0:2.9.13-14.el9_8.4 |
| Red Hat Enterprise Linux 9 | python3-libxml2-debuginfo | 0:2.9.13-14.el9_8.4 |
| Rocky Linux 8 | libxml2 | 0:2.9.7-21.el8_10.8 |
| Rocky Linux 9 | libxml2 | 0:2.9.13-14.el9_8.4 |
| Ubuntu 22.04 LTS | libxml2 | 2.9.13+dfsg-1ubuntu0.12 |
| Ubuntu 24.04 LTS | libxml2 | 2.9.14+dfsg-1.3ubuntu3.8 |