CVE-2026-86139
Fixed in a distro release EPSS <1%CVSS 6.9
In libxml2 before 2.15.4, xmlURIEscapeStr in uri.c has an integer overflow.
Products: xmlsoft libxml2
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 13 | libxml2 | no fix |
| Debian 14 | libxml2 | 2.15.4+dfsg-1 |
| Red Hat hummingbird 1 | libxml2 | 0:2.15.4-0.1.hum1 |
| Red Hat hummingbird 1 | libxml2-16 | 0:2.15.4-0.1.hum1 |
| Red Hat hummingbird 1 | libxml2-devel | 0:2.15.4-0.1.hum1 |
| Red Hat hummingbird 1 | libxml2-static | 0:2.15.4-0.1.hum1 |
| Red Hat hummingbird 1 | python3-libxml2 | 0:2.15.4-0.1.hum1 |
| Ubuntu 22.04 LTS | libxml2 | 2.9.13+dfsg-1ubuntu0.14 |
| Ubuntu 24.04 LTS | libxml2 | 2.9.14+dfsg-1.3ubuntu3.10 |
| Ubuntu 26.04 LTS | libxml2 | 2.15.2+dfsg-0.1ubuntu0.3 |
| Ubuntu Pro 14.04 LTS | libxml2 | 2.9.1+dfsg1-3ubuntu4.13+esm13 |
| Ubuntu Pro 16.04 LTS | libxml2 | 2.9.3+dfsg1-1ubuntu0.7+esm14 |
| Ubuntu Pro 18.04 LTS | libxml2 | 2.9.4+dfsg1-6.1ubuntu1.9+esm9 |
| Ubuntu Pro 20.04 LTS | libxml2 | 2.9.10+dfsg-5ubuntu0.20.04.10+esm6 |