← Voltar para CVEs

CVE-2026-5845

N/A

Descricao

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 vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.1, 3.19.5, 3.18.8, 3.17.14, 3.16.17, 3.15.21, and 3.14.26. This vulnerability was reported via the GitHub Bug Bounty program.

Detalhes CVE

Pontuacao CVSS v3.1N/A

Publicado4/21/2026

Ultima modificacao4/22/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-639

Referencias

https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.26(product-cna@github.com)

https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.21(product-cna@github.com)

https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.17(product-cna@github.com)

https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.14(product-cna@github.com)

https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.8(product-cna@github.com)

https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.5(product-cna@github.com)

https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.1(product-cna@github.com)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.