GHSA-cvp8-5r8g-fhvq
omniauth-saml vulnerable to Improper Verification of Cryptographic Signature
GHSA-cvp8-5r8g-fhvq is a critical vulnerability (CVSS 9.9) in omniauth-saml, published September 11, 2024. No source lists public exploit code. Fixed in omniauth-saml 2.1.2.
- Severity
- 9.9 CriticalCVSS 4.0, GitHub Advisories
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
2.1.2omniauth-saml +4 more
Description
ruby-saml, the dependent SAML gem of omniauth-saml has a signature wrapping vulnerability in <= v1.12.0 and v1.13.0 to v1.16.0 , see https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-jw9c-mfg7-9rx2 As a result, omniauth-saml created a new release by upgrading ruby-saml to the patched versions v1.17.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Affected packages
| Package | Affected | Fixed |
|---|---|---|
omniauth-samlRubyGems | 2.0.0 up to 2.1.2 | 2.1.2 |
omniauth-samlRubyGems | before 1.10.5 | 1.10.5 |
omniauth-samlRubyGems | 2.2.0 up to 2.2.1 | 2.2.1 |
omniauth-samlRubyGems | 2.0.0 up to 2.1.2, plus listed versions 2.1.02.1.1 | 2.1.2 |
omniauth-samlRubyGems | before 1.10.5, plus listed versions 0.9.00.9.10.9.21.0.01.1.0 Show 17 moreShow less1.10.01.10.11.10.21.10.31.10.41.2.01.3.01.3.11.4.01.4.11.4.21.5.01.6.01.7.01.8.01.8.11.9.0 | 1.10.5 |
What each source reports
GitHub Advisories Score used
omniauth-saml vulnerable to Improper Verification of Cryptographic Signature
ruby-saml, the dependent SAML gem of omniauth-saml has a signature wrapping vulnerability in <= v1.12.0 and v1.13.0 to v1.16.0 , see https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-jw9c-mfg7-9rx2 As a result, omniauth-saml created a new release by upgrading ruby-saml to the patched versions v1.17.
- Record
GHSA-cvp8-5r8g-fhvq- CVSS 4.0
- 9.9 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N - CVSS 3.1
- 10.0 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSV
omniauth-saml vulnerable to Improper Verification of Cryptographic Signature
ruby-saml, the dependent SAML gem of omniauth-saml has a signature wrapping vulnerability in <= v1.12.0 and v1.13.0 to v1.16.0 , see https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-jw9c-mfg7-9rx2 As a result, omniauth-saml created a new release by upgrading ruby-saml to the patched versions v1.17.
- Record
GHSA-cvp8-5r8g-fhvq- CVSS 4.0
- 9.9 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N - CVSS 3.1
- 10.0 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-jw9c-mfg7-9rx2