OPENSUSE-SU-2026:10604-1

Vulnerability from csaf_opensuse - Published: 2026-04-22 00:00 - Updated: 2026-04-22 00:00
Summary
ruby4.0-rubygem-rack-session-2.1.2-1.1 on GA media
Severity
Moderate
Notes
Title of the patch: ruby4.0-rubygem-rack-session-2.1.2-1.1 on GA media
Description of the patch: These are all security issues fixed in the ruby4.0-rubygem-rack-session-2.1.2-1.1 package on the GA media of openSUSE Tumbleweed.
Patchnames: openSUSE-Tumbleweed-2026-10604
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

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        {
          "category": "general",
          "text": "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.",
          "title": "CVE description"
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            "baseSeverity": "CRITICAL",
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            "version": "3.1"
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          "date": "2026-04-22T00:00:00Z",
          "details": "critical"
        }
      ],
      "title": "CVE-2026-39324"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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