A vulnerability was found in libxml2 up to 2.14.5. It has been declared as problematic. This vulnerability affects the function xmlParseSGMLCatalog of the component xmlcatalog. The manipulation leads to uncontrolled recursion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains, that "[t]he issue can only be triggered with untrusted SGML catalogs and it makes absolutely no sense to use untrusted catalogs. I also doubt that anyone is still using SGML catalogs at all."
CVSS Details
- CVSS 4.0 Base Score: 1.9 (LOW)
- CVSS 4.0 Vector: (CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
- CVSS 3.1 Base Score: 3.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade libxml2-pythonUpgrade libxml2-staticUpgrade libxml2-develUpgrade libxml2-debuginfoUpgrade libxml2 | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade libxml2-staticUpgrade libxml2-debuginfoUpgrade python3-libxml2Upgrade libxml2-develUpgrade libxml2Upgrade python3-libxml2-debuginfoUpgrade libxml2-debugsource | Jan 26, 2026 | Aug 8, 2025 |
| Debian | — | Upgrade libxml2 | Jun 9, 2026 | Jun 9, 2026 |
| Ibm Aix | — | Apply the fix or workaround for libxml2_advisory10 | Feb 19, 2026 | Feb 18, 2026 |
| Ubuntu | — | Upgrade libxml2 (Ubuntu Pro)Upgrade libxml2Upgrade libxml2-16 | Jan 23, 2026 | Aug 8, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jun 29, 2026 | Aug 8, 2025 |
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