CVE-2026-39324
github.com/rack/rack-session: Rack::Session: Unauthorized access via crafted session cookies
Sévérité par source
Le label propre à Trivy est CRITICAL. Critique selon NVD, GHSA, Red Hat. Plus basse selon Ubuntu (moyenne).
Description
Rack::Session is a session management implementation for Rack. From 2.0.0 to before 2.1.2, Rack::Session::Cookie incorrectly handles decryption failures when configured with secrets:. If cookie decryption fails, the implementation falls back to a default decoder instead of rejecting the cookie. This allows an unauthenticated attacker to supply a crafted session cookie that is accepted as valid session data without knowledge of any configured secret. Because this mechanism is used to load session state, an attacker can manipulate session contents and potentially gain unauthorized access. This vulnerability is fixed in 2.1.2.
Paquets affectés et versions corrigées
| Source | Paquet | Corrigé en |
|---|---|---|
| rubygems::GitHub Security Advisory RubyGems | rack-session | 2.1.2 |
| chainguard | logstash-8.19, logstash-9.0, logstash-9.1 et 16 autres | 8.19.14-r3 et 15 autres |
| debian 13 | ruby-rack-session | 2.1.1-0.1+deb13u1 |
| debian 14 | ruby-rack-session | 2.1.1-0.2 |
| echo | ruby-rack-session | 2.1.1-0.1+deb13u1 |
| minimos | logstash-9.3, ruby3.4-rack-session, ruby4.0-rack-session | 9.3.4-r0 et 1 autres |
| rapidfort debian 12 | ruby-rack-session | 0:2.1.1-0.1+deb13u1, 0:2.1.1-0.2 |
| rapidfort debian 13 | ruby-rack-session | 0:2.1.1-0.1+deb13u1, 0:2.1.1-0.2 |
| rapidfort ubuntu 20.04 | ruby-rack-session | 0:2.1.1-0.1ubuntu0.1 |
| rapidfort ubuntu 22.04 | ruby-rack-session | 0:2.1.1-0.1ubuntu0.1 |
| rapidfort ubuntu 24.04 | ruby-rack-session | 0:2.1.1-0.1ubuntu0.1 |
| rubygems::Ruby Advisory Database | rack-session | >= 2.1.2 |
Afficher les 39 entrées de 15 sources
| Source | Paquet | Corrigé en |
|---|---|---|
| rubygems::GitHub Security Advisory RubyGems | rack-session | 2.1.2 |
| chainguard | logstash-8.19 | 8.19.14-r3 |
| chainguard | logstash-9.0 | 9.0.8-r20 |
| chainguard | logstash-9.1 | 9.1.10-r6 |
| chainguard | logstash-9.2 | 9.2.8-r2 |
| chainguard | logstash-9.3 | 9.3.3-r2 |
| chainguard | pact-broker-docker | 2.137.0.2.118.0-r4 |
| chainguard | pact-broker-docker-fips | 2.137.0.2.118.0-r2 |
| chainguard | ruby3.2-rails-7.2 | 7.2.3.1-r2 |
| chainguard | ruby3.2-rails-8.0 | 8.0.5-r0 |
| chainguard | ruby3.2-rails-8.1 | 8.1.3-r3 |
| chainguard | ruby3.3-rails-7.2 | 7.2.3.1-r4 |
| chainguard | ruby3.3-rails-8.0 | 8.0.5-r3 |
| chainguard | ruby3.3-rails-8.1 | 8.1.3-r4 |
| chainguard | ruby3.4-rails-7.2 | 7.2.3.1-r2 |
| chainguard | ruby3.4-rails-8.0 | 8.0.5-r2 |
| chainguard | ruby3.4-rails-8.1 | 8.1.3-r4 |
| chainguard | ruby4.0-rails-7.2 | 7.2.3.1-r3 |
| chainguard | ruby4.0-rails-8.0 | 8.0.5-r1 |
| chainguard | ruby4.0-rails-8.1 | 8.1.3-r3 |
| debian 13 | ruby-rack-session | 2.1.1-0.1+deb13u1 |
| debian 14 | ruby-rack-session | 2.1.1-0.2 |
| echo | ruby-rack-session | 2.1.1-0.1+deb13u1 |
| minimos | logstash-9.3 | 9.3.4-r0 |
| minimos | ruby3.4-rack-session | 2.1.2-r0 |
| minimos | ruby4.0-rack-session | 2.1.2-r0 |
| rapidfort debian 12 | ruby-rack-session | 0:2.1.1-0.1+deb13u1, 0:2.1.1-0.2 |
| rapidfort debian 13 | ruby-rack-session | 0:2.1.1-0.1+deb13u1, 0:2.1.1-0.2 |
| rapidfort ubuntu 20.04 | ruby-rack-session | 0:2.1.1-0.1ubuntu0.1 |
| rapidfort ubuntu 22.04 | ruby-rack-session | 0:2.1.1-0.1ubuntu0.1 |
| rapidfort ubuntu 24.04 | ruby-rack-session | 0:2.1.1-0.1ubuntu0.1 |
| rubygems::Ruby Advisory Database | rack-session | >= 2.1.2 |
| ubuntu 25.10 | ruby-rack-session | 2.1.1-0.1ubuntu0.1 |
| ubuntu 26.04 | ruby-rack-session | 2.1.1-0.1ubuntu0.26.04.1 |
| wolfi | logstash-9.3 | 9.3.3-r2 |
| wolfi | ruby3.2-rails-8.1 | 8.1.3-r3 |
| wolfi | ruby3.3-rails-8.1 | 8.1.3-r4 |
| wolfi | ruby3.4-rails-8.1 | 8.1.3-r4 |
| wolfi | ruby4.0-rails-8.1 | 8.1.3-r3 |
Références
- https://access.redhat.com/security/cve/CVE-2026-39324
- https://github.com/advisories/GHSA-33qg-7wpp-89cq
- https://github.com/rack/rack-session
- https://github.com/rack/rack-session/security/advisories/GHSA-33qg-7wpp-89cq
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack-session/CVE-2026-39324.yml
- https://nvd.nist.gov/vuln/detail/CVE-2026-39324
- https://ubuntu.com/security/notices/USN-8190-1
- https://ubuntu.com/security/notices/USN-8190-2