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01 Record

CVE-2024-9487

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

CriticalPUBLISHEDCNA: GitHub_P
CNA base score9.5 CVSS v4.0CVSS: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
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02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
25.60% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 97.8% of scored records. A rank, not a probability.
NVD base score
9.5 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
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 analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-10-10 21:08Z2 YR AGO
Last updated
2024-10-11 15:34Z2 YR AGO
Reserved
2024-10-03
Assigning CNA
GitHub_P
Record state
PUBLISHED
Severity
Critical (CVSS 9.5)
CNA CVSS vector
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
Weaknesses
  • CWE-347Improper Verification of Cryptographic SignatureBase
Data version
5.1
Document digest
16071198d85b394a1ac0c2efe6bc489f17ed67fb6b0b55f832ada84a5297f4ab

05 Affected products

VendorProductVersionsPlatforms
GitHubEnterprise Server3.11.0 to 3.11.15, 3.12.0 to 3.12.9, 3.13.0 to 3.13.4, 3.14.0 to 3.14.1—
githubenterprise_server3.11.0 to 3.11.15, 3.12.0 to 3.12.9, 3.13.0 to 3.13.4, 3.14.0 to 3.14.1—

06 References