CVE-2025-25293 – ruby-saml

Package

Manager: gem
Name: ruby-saml
Vulnerable Version: >=0 <1.12.4 || >=1.13.0 <1.18.0

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:R

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P

EPSS: 0.02034 pctl0.83115

Details

Ruby SAML allows remote Denial of Service (DoS) with compressed SAML responses ### 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).

Metadata

Created: 2025-03-12T20:16:50Z
Modified: 2025-03-14T12:32:01Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/03/GHSA-92rq-c8cf-prrq/GHSA-92rq-c8cf-prrq.json
CWE IDs: ["CWE-400", "CWE-770"]
Alternative ID: GHSA-92rq-c8cf-prrq
Finding: F002
Auto approve: 1