| Name | CVE-2026-33210 |
| Description | Ruby JSON is a JSON implementation for Ruby. From version 2.14.0 to before versions 2.15.2.1, 2.17.1.2, and 2.19.2, a format string injection vulnerability can lead to denial of service attacks or information disclosure, when the allow_duplicate_key: false parsing option is used to parse user supplied documents. This issue has been patched in versions 2.15.2.1, 2.17.1.2, and 2.19.2. |
| 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) |
| Debian Bugs | 1131463 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| ruby-json (PTS) | bullseye | 2.3.0+dfsg-1 | fixed |
| bookworm | 2.6.3+dfsg-1 | fixed | |
| trixie | 2.9.1+dfsg-1 | fixed | |
| forky, sid | 2.19.1+dfsg-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| ruby-json | source | bullseye | (not affected) | |||
| ruby-json | source | bookworm | (not affected) | |||
| ruby-json | source | trixie | (not affected) | |||
| ruby-json | source | (unstable) | (unfixed) | 1131463 |
[trixie] - ruby-json <not-affected> (Vulnerable code not present)
[bookworm] - ruby-json <not-affected> (Vulnerable code not present)
[bullseye] - ruby-json <not-affected> (Vulnerable code not present)
https://github.com/ruby/json/security/advisories/GHSA-3m6g-2423-7cp3
Introduced with: https://github.com/ruby/json/commit/8454149d034ab7e8d1c176bfb0cddd3842088981 (v2.14.0)
Fixed by: https://github.com/ruby/json/commit/393b41c3e5f87491e1e34fa59fa78ff6fa179a74 (v2.19.2)