CVE-2025-54572: falha de média gravidade em SAML-Toolkits ruby-saml
Ruby SAML DOS vulnerability with large SAML response
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13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.9epss 0.5%
The Ruby SAML library is for implementing the client side of a SAML authorization. In versions 1.18.0 and below, a denial-of-service vulnerability exists in ruby-saml even with the message_max_bytesize setting configured. The vulnerability occurs because the SAML response is validated for Base64 format prior to checking the message size, leading to potential resource exhaustion. This is fixed in version 1.18.1.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Produtos afetados
SAML-Toolkits · ruby-samlCVEs relacionadas — SAML-Toolkits ruby-saml
No mesmo produto, das mais perigosas para as menos.
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Referências
https://github.com/SAML-Toolkits/ruby-saml/commit/38ef5dd1ce17514e202431f569c4f5633e6c2709https://github.com/SAML-Toolkits/ruby-saml/pull/770https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.1https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-rrqh-93c8-j966https://lists.debian.org/debian-lts-announce/2025/09/msg00001.html