CVE-2024-9487

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2024-10-11. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 25%CVSS: 9.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
57(Track)
EG Risk 57/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
97.7%
KEV
Not listed

Published

October 10, 2024

Last Modified

November 15, 2024

Advisory Details (4)

Auto-updated Jul 23, 2026
Patch available.
generic

Release notes - GitHub Enterprise Server 3.14 Docs

https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.2
generic

Release notes - GitHub Enterprise Server 3.13 Docs

https://docs.github.com/en/enterprise-server@3.13/admin/release-notes#3.13.5
generic Patch Available

Release notes - GitHub Enterprise Server 3.12 Docs

https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.10
generic Patch Available

Release notes - GitHub Enterprise Server 3.11 Docs

https://docs.github.com/en/enterprise-server@3.11/admin/release-notes#3.11.16

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 42× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 14:17 UTCEPSS rescore
  2. 2026-07-23 02:47 UTCEG score recompute
  3. 2026-07-22 14:07 UTCEPSS rescore
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  27. 2026-06-12 23:11 UTCEPSS rescore
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  50. 2026-05-29 13:43 UTCEPSS rescore
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  60. 2026-05-26 07:18 UTCEPSS rescore
  61. 2026-05-23 20:42 UTCEG score recompute
  62. 2026-05-23 20:42 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2024-9487?
CVE-2024-9487 is a critical vulnerability published on October 10, 2024. 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…
When was CVE-2024-9487 disclosed?
CVE-2024-9487 was first published in the National Vulnerability Database on October 10, 2024, with the most recent update on November 15, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-9487 actively exploited?
CVE-2024-9487 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-9487?
CVE-2024-9487 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2024-9487?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-9487, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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