CVE-2026-33202

NameCVE-2026-33202
DescriptionActive Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Storage's `DiskService#delete_prefixed` passes blob keys directly to `Dir.glob` without escaping glob metacharacters. If a blob key contains attacker-controlled input or custom-generated keys with glob metacharacters, it may be possible to delete unintended files from the storage directory. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1132035

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
rails (PTS)bullseye2:6.0.3.7+dfsg-2+deb11u2vulnerable
bullseye (security)2:6.0.3.7+dfsg-2+deb11u4vulnerable
bookworm, bookworm (security)2:6.1.7.10+dfsg-1~deb12u2vulnerable
trixie (security), trixie2:7.2.2.2+dfsg-2~deb13u1vulnerable
forky2:7.2.3+dfsg-3vulnerable
sid2:7.2.3.1+dfsg-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
railssource(unstable)2:7.2.3.1+dfsg-11132035

Notes

[trixie] - rails <no-dsa> (Minor issue)
[bookworm] - rails <no-dsa> (Minor issue)
https://github.com/rails/rails/security/advisories/GHSA-73f9-jhhh-hr5m
Fixed by: https://github.com/rails/rails/commit/8c9676b803820110548cdb7523800db43bc6874c (v8.1.2.1)
Fixed by: https://github.com/rails/rails/commit/955284d26e469a9c026a4eee5b21f0414ab0bccf (v8.0.4.1)
Fixed by: https://github.com/rails/rails/commit/fa19073546360856e9f4dab221fc2c5d73a45e82 (v7.2.3.1)

Search for package or bug name: Reporting problems