# CVE-2024-45409: SAML authentication bypass via Incorrect XPath selector

Source: https://junglewise.ai/threats/cve-2024-45409-saml-authentication-bypass-via-incorrect-xpath-selector  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-09-10  
License: CC BY 4.0 with a link back

CVE-2024-45409 · Severity: low · CVSS 3.1 · Published 2024-09-10

SAML authentication bypass via Incorrect XPath selector

Technologies: [ruby-saml (RubyGems)](https://junglewise.ai/threats/technologies/rubygems-ruby-saml). Vendors: [RubyGems](https://junglewise.ai/threats/vendors/rubygems).

## Quick answers

**Is CVE-2024-45409 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-45409 being exploited in the wild.

**How severe is CVE-2024-45409?** Low severity, with a CVSS score of 3.1, published 10 September 2024.

**Which products and versions are affected?** ruby-saml (RubyGems) ECOSYSTEM:introduced=0,fixed=1.12.3.

**Is there a fix for CVE-2024-45409?** Yes. ruby-saml (RubyGems): upgrade to 1.12.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2024-45409?** Check whether you run ruby-saml (RubyGems) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- ruby-saml (RubyGems): upgrade to 1.12.3 or later

  ```sh
  bundle update ruby-saml
  ```


## Affected products

- ruby-saml (RubyGems) ECOSYSTEM:introduced=0,fixed=1.12.3

## Identifiers

- CVE-2024-45409
- GHSA-jw9c-mfg7-9rx2

## Related threats

- [Ruby-saml allows a Libxml2 Canonicalization error to bypass Digest/Signature validation](https://junglewise.ai/threats/cve-2025-66568-ruby-saml-allows-a-libxml2-canonicalization-error-to-bypass)
- [Ruby-saml has a SAML authentication bypass due to namespace handling (parser differential)](https://junglewise.ai/threats/cve-2025-66567-ruby-saml-has-a-saml-authentication-bypass-due-to-namespace)
- [Ruby SAML DOS vulnerability with large SAML response](https://junglewise.ai/threats/cve-2025-54572-ruby-saml-dos-vulnerability-with-large-saml-response)
- [Ruby SAML allows a SAML authentication bypass due to namespace handling (parser differential)](https://junglewise.ai/threats/cve-2025-25292-ruby-saml-allows-a-saml-authentication-bypass-due-to-namespace)
- [Ruby SAML allows a SAML authentication bypass due to DOCTYPE handling (parser differential)](https://junglewise.ai/threats/cve-2025-25291-ruby-saml-allows-a-saml-authentication-bypass-due-to-doctype)