| Name | CVE-2026-6409 |
| Description | A Denial of Service (DoS) vulnerability exists in the Protobuf PHP lib ... |
| 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 |
|---|
| protobuf (PTS) | bullseye | 3.12.4-1+deb11u1 | vulnerable |
| bookworm | 3.21.12-3 | vulnerable |
| trixie | 3.21.12-11 | vulnerable |
| forky, sid | 3.21.12-15 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| protobuf | source | (unstable) | (unfixed) | | | |
Notes
https://github.com/protocolbuffers/protobuf/security/advisories/GHSA-p2gh-cfq4-4wjc
https://github.com/protocolbuffers/protobuf/issues/24159
Fixed by: https://github.com/protocolbuffers/protobuf/commit/60e93d2d104f2af9cd345b1c6f3891d91430244a (v4.33.6)
https://github.com/protocolbuffers/protobuf/issues/25067
Fixed by: https://github.com/protocolbuffers/protobuf/commit/c8e9b27d95c6ab2d0668b5889e7dac2c477b7038 (v4.33.6)