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CVE-2026-5845

An improper authorization vulnerability in scoped user-to-server (ghu_) token authorization in GitHub Enterprise Server allows an authenticated attacker to access private repositories outside the intended installation scope, which can include write operations, via an authorization fallback that treated a revoked/deleted installation as a global installation context, which could be chained with token revocation timing and SSH push attribution to obtain and reuse a victim-scoped token. This vulner
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5f82270315c6f73fe3c41c6dc6826c7bc32a051d891c04e4f79eefbcce7e88ad
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Enterprise Server","vendor":"GitHub","versions":[{"changes":[{"at":"3.20.1","status":"unaffected"}],"lessThan":"3.20.1","status":"affected","version":"3.20.0","versionType":"semver"},{"changes":[{"at":"3.19.5","status":"unaffected"}],"lessThanOrEqual":"3.19.4","status":"affected","version":"3.19.0","versionType":"semver"},{"changes":[{"at":"3.18.8","status":"unaffected"}],"lessThanOrEqual":"3.18.7","status":"affected","version":"3.18.0","versionType":"semver"},{"changes":[{"at":"3.17.14","status":"unaffected"}],"lessThanOrEqual":"3.17.13","status":"affe…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:faf1183c17535a628405f7cad10a7b6838437951914233f0c9baaa96d8e20364 · sha256:3cb81d41e05139e6… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":7.2,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HI…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:faf1183c17535a628405f7cad10a7b6838437951914233f0c9baaa96d8e20364 · sha256:3cb81d41e05139e6… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-639","description":"CWE-639 Authorization bypass through User-Controlled key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:faf1183c17535a628405f7cad10a7b6838437951914233f0c9baaa96d8e20364 · sha256:3cb81d41e05139e6… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"url":"https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.26"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:faf1183c17535a628405f7cad10a7b6838437951914233f0c9baaa96d8e20364 · sha256:3cb81d41e05139e6… · /containers/cna/references/6
{"url":"https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.21"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:faf1183c17535a628405f7cad10a7b6838437951914233f0c9baaa96d8e20364 · sha256:3cb81d41e05139e6… · /containers/cna/references/5
{"url":"https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.17"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:faf1183c17535a628405f7cad10a7b6838437951914233f0c9baaa96d8e20364 · sha256:3cb81d41e05139e6… · /containers/cna/references/4
{"url":"https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.14"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:faf1183c17535a628405f7cad10a7b6838437951914233f0c9baaa96d8e20364 · sha256:3cb81d41e05139e6… · /containers/cna/references/3
{"url":"https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:faf1183c17535a628405f7cad10a7b6838437951914233f0c9baaa96d8e20364 · sha256:3cb81d41e05139e6… · /containers/cna/references/2
{"url":"https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:faf1183c17535a628405f7cad10a7b6838437951914233f0c9baaa96d8e20364 · sha256:3cb81d41e05139e6… · /containers/cna/references/1
{"url":"https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:faf1183c17535a628405f7cad10a7b6838437951914233f0c9baaa96d8e20364 · sha256:3cb81d41e05139e6… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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