| Name | CVE-2026-33691 |
| Description | Whitespace padding in filenames bypasses file upload extension checks |
| 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 |
|---|
| modsecurity-crs (PTS) | bullseye | 3.3.0-1+deb11u1 | vulnerable |
| bullseye (security) | 3.3.4-1~deb11u2 | vulnerable |
| bookworm | 3.3.4-1 | vulnerable |
| bookworm (security) | 3.3.4-1+deb12u1 | vulnerable |
| trixie (security), trixie | 3.3.7-1+deb13u1 | vulnerable |
| forky | 3.3.8-1 | vulnerable |
| sid | 3.3.9-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| modsecurity-crs | source | (unstable) | 3.3.9-1 | | | |
Notes
[trixie] - modsecurity-crs <no-dsa> (Minor issue)
[bookworm] - modsecurity-crs <no-dsa> (Minor issue)
https://github.com/coreruleset/coreruleset/security/advisories/GHSA-rw5f-9w43-gv2w