CVE-2024-9487 in the critical feed json
An Improper Verification of Cryptographic Signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed when the encrypted assertions feature was enabled
published 2024-10-10 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-49973
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 25.6%
- EPSS 25.6% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed resulting in unauthorized provisioning of users and access to the instance. Exploitation required the encrypted assertions feature to be enabled, and the attacker would require direct network access as well as a signed SAML response or metadata document. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.15 and was fixed in versions 3.11.16, 3.12.10, 3.13.5, and 3.14.2. This vulnerability was reported via the GitHub Bug Bounty program.
Patch / fix
- GitHub Enterprise Server 3.11.16, 3.12.10, 3.13.5, 3.14.2
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
25.61% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.5 | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/R:U/V:C/RE:M/U:Red |
| CNA | 4.0 | 9.5 | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:U/V:C/RE:M/U:Red |
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected products
- GitHub Enterprise Server
- github enterprise_server
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
docs.github.com
/en/enterprise-server@3.11/admin/release-notes#3.11.16
release-notes
-
docs.github.com
/en/enterprise-server@3.12/admin/release-notes#3.12.10
release-notes
-
docs.github.com
/en/enterprise-server@3.13/admin/release-notes#3.13.5
release-notes
-
docs.github.com
/en/enterprise-server@3.14/admin/release-notes#3.14.2
release-notes
Sources
- CVE List CVE-2024-9487
- NVD CVE-2024-9487
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