# CVE-2024-45409: ruby-saml: The Ruby SAML library is for implementing the client side of a SAMLauthorization

CVE-2024-45409 is fixed in ruby-saml on 1 platform, first by ruby-saml 1.7.2-1ubuntu0.1~esm1, released September 10, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-45409
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.1068
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 10, 2024

## Description

The Ruby SAML library is for implementing the client side of a SAMLauthorization. Ruby-SAML in <= 12.2 and 1.13.0 <= 1.16.0 does not properlyverify the signature of the SAML Response. An unauthenticated attacker withaccess to any signed saml document (by the IdP) can thus forge a SAMLResponse/Assertion with arbitrary contents. This would allow the attackerto log in as arbitrary user within the vulnerable system. Thisvulnerability is fixed in 1.17.0 and 1.12.3.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ruby-saml Debian 11.6 (bullseye) | 1.11.0-1+deb11u1 | [DLA-3949-1](https://patchblox.com/security/data/fix/linux/dla-3949-1.md) | Nov 11, 2024 |
| Linux | ruby-saml Debian 12.15 (bookworm) | 1.13.0-1+deb12u1 | [DSA-5774-1](https://patchblox.com/security/data/fix/linux/dsa-5774-1.md) | Sep 20, 2024 |
| Linux | ruby-saml Ubuntu 18.04.6 LTS (bionic) | 1.7.2-1ubuntu0.1~esm1 | [ruby-saml 1.7.2-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ruby-saml-1.7.2-1ubuntu0.1-esm1.md) | Sep 10, 2024 |
| Linux | ruby-saml Ubuntu 20.04 LTS (focal) | 1.11.0-1ubuntu0.1 | [ruby-saml 1.11.0-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ruby-saml-1.11.0-1ubuntu0.1.md) | Sep 10, 2024 |
| Linux | ruby-saml Ubuntu 22.04.1 LTS (jammy) | 1.13.0-1ubuntu0.1 | [ruby-saml 1.13.0-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ruby-saml-1.13.0-1ubuntu0.1.md) | Sep 10, 2024 |
| Linux | ruby-saml Ubuntu 24.04.5 LTS (noble) | 1.15.0-1ubuntu0.24.04.1 | [ruby-saml 1.15.0-1ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-ruby-saml-1.15.0-1ubuntu0.24.04.1.md) | Sep 10, 2024 |
| Linux | ruby-saml Ubuntu 24.10 (oracular) | 1.15.0-1ubuntu0.24.10.1 | [ruby-saml 1.15.0-1ubuntu0.24.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-ruby-saml-1.15.0-1ubuntu0.24.10.1.md) | Jan 16, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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