CVE-2025-25293
highPriorität · verfolgen · 31EPSS 0.015 · 75. PerzentilDEEURUUSEPSS · bewertet 2026-10-27
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Prior to versions 1.12.4 and 1.18.0, ruby-saml is susceptible to remote Denial of Service (DoS) with compressed SAML responses. ruby-saml uses zlib to decompress SAML responses in case they're compressed. It is possible to bypass the message size check with a compressed assertion since the message size is checked before inflation and not after. This issue may lead to remote Denial of Service (DoS). Versions 1.12.4 and 1.18.0 fix the issue.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.6–7.7
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (26)
Betroffene Produkte und Versionsbereiche.
Advisories (3)
Hersteller- und Ökosystem-Meldungen dazu.
- WID-SEC-W-2025-0561Ruby SAML: Mehrere SchwachstellenDeutsch2025-03-13csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Ruby SAML ausnutzen, um Sicherheitsvorkehrungen zu umgehen und um einen Denial of Service Zustand herbeizuführen.
- GHSA-92rq-c8cf-prrqRuby SAML allows remote Denial of Service (DoS) with compressed SAML responses2025-03-12ghsa · osvUS
### Summary ruby-saml is susceptible to remote Denial of Service (DoS) with compressed SAML responses. Ruby-saml uses zlib to decompress SAML responses in case they're compressed. It is possible to bypass the message size check with a compressed assertion since the message size is checked before inflation and not after. ### Impact This issue may lead to remote Denial of Service (DoS).
- BIT-gitlab-2025-25293ruby-saml vulnerable to Remote Denial of Service (DoS) with compressed SAML responses2025-04-14vendor · osvUS
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Prior to versions 1.12.4 and 1.18.0, ruby-saml is susceptible to remote Denial of Service (DoS) with compressed SAML responses. ruby-saml uses zlib to decompress SAML responses in case they're compressed. It is possible to bypass the message size check with a compressed assertion since the message size is checked before inflation and not after. This issue may lead to remote Denial of Service (DoS). Versions 1.12.4 and 1.18.0 fix the issue.
auch bekannt als (6)
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quellen
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Referenzen (29)
Externe Belege — Patches, Meldungen, Analysen.
- https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-releasedcnnvd
- https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentialscnnvd
- https://github.com/SAML-Toolkits/ruby-saml/commit/acac9e9cc0b9a507882c614f25d41f8b47be349acnnvd
- https://github.com/SAML-Toolkits/ruby-saml/commit/e2da4c6dae7dc01a4d9cd221395140a67e2b3eb1cnnvd
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4cnnvd
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0cnnvd
- https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-92rq-c8cf-prrqcnnvd
- https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xvcnnvd
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