CVE-2026-39324
1 advisory.
RubyGems/rack-session CVE-2026-39324: critical
Rack::Session::Cookie secrets: decrypt failure fallback enables secretless session forgery and Marshal deserialization
Action: Upgrade rack-session to 2.1.2 or later.
bundle update rack-sessionAffected
| introduced | fixed | last affected |
|---|---|---|
| 2.0.0 | 2.1.2 | - |
Fixed versions
| 2.1.2 |
Sources
- osv: GHSA-33qg-7wpp-89cq
- https://github.com/rack/rack-session/security/advisories/GHSA-33qg-7wpp-89cq
- https://nvd.nist.gov/vuln/detail/CVE-2026-39324
- https://github.com/rack/rack-session
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack-session/CVE-2026-39324.yml
CVE-2026-39324 · published · modified · JSON