| Name | CVE-2026-7263 |
| Description | In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, DOMNode::C14N() method may process the XML data incorrectly, causing a circular linked list in the data structure representing the XML document. This may cause subsequent processing of the XML document to enter infinite loop, causing denial of service in the processing application. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-6256-1 |
| Debian Bugs | 1136054 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| php7.4 (PTS) | bullseye | 7.4.33-1+deb11u5 | fixed |
| bullseye (security) | 7.4.33-1+deb11u11 | fixed | |
| php8.2 (PTS) | bookworm, bookworm (security) | 8.2.31-1~deb12u1 | fixed |
| php8.4 (PTS) | trixie | 8.4.16-1~deb13u1 | vulnerable |
| trixie (security) | 8.4.21-1~deb13u1 | fixed | |
| forky, sid | 8.4.21-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| php7.4 | source | (unstable) | (not affected) | |||
| php8.2 | source | (unstable) | (not affected) | |||
| php8.4 | source | trixie | 8.4.21-1~deb13u1 | DSA-6256-1 | ||
| php8.4 | source | (unstable) | 8.4.21-1 | 1136054 |
- php8.2 <not-affected> (Only affects 8.4 and later)
- php7.4 <not-affected> (Only affects 8.4 and later)
https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733
https://github.com/php/php-src/commit/d43c523c48960e9ca0bf9c747e9bad8e5121edff