| Name | CVE-2025-43421 |
| Description | Multiple issues were addressed by disabling array allocation sinking. This issue is fixed in iOS 26.1 and iPadOS 26.1, Safari 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected process crash. |
| 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) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| webkit2gtk (PTS) | bullseye | 2.44.2-1~deb11u1 | vulnerable |
| bullseye (security) | 2.50.2-1~deb11u1 | vulnerable |
| bookworm | 2.48.5-1~deb12u1 | vulnerable |
| bookworm (security) | 2.50.2-1~deb12u1 | vulnerable |
| trixie | 2.50.1-1~deb13u1 | vulnerable |
| trixie (security) | 2.50.2-1~deb13u1 | vulnerable |
| forky | 2.50.2-1 | vulnerable |
| sid | 2.50.3-1 | fixed |
| wpewebkit (PTS) | bullseye (security), bullseye | 2.38.6-1~deb11u1 | vulnerable |
| bookworm | 2.38.6-1 | vulnerable |
| trixie | 2.48.3-1 | vulnerable |
| forky | 2.50.2-1 | vulnerable |
| sid | 2.50.3-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| webkit2gtk | source | (unstable) | 2.50.3-1 | | | |
| wpewebkit | source | bullseye | (unfixed) | end-of-life | | |
| wpewebkit | source | (unstable) | 2.50.3-1 | | | |
Notes
[trixie] - wpewebkit <ignored> (wpewebkit not covered by security support in Trixie)
[bookworm] - wpewebkit <ignored> (wpewebkit not covered by security support in Bookworm)
[bullseye] - wpewebkit <end-of-life> (see #1035997)
https://webkitgtk.org/security/WSA-2025-0009.html