Open Redirect in Github Enterprise Server
CVE-2026-0573
An URL redirection vulnerability was identified in GitHub Enterprise Server that allowed attacker-controlled redirects to leak sensitive authorization tokens. The repository_pages API insecurely followed HTTP redirects when fetching artifa…
Vulnerability class: Open Redirect
EPSS: 0.006 (46.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.
Affected products
- Github Enterprise Server — versions 3.14, 3.15, 3.16
- Github Enterprise_server
Weakness classification (CWE)
References
- product-cna@github.com (release-notes, Product, Release Notes)
- product-cna@github.com (release-notes, Product, Release Notes)
- product-cna@github.com (release-notes, Product, Release Notes)
- product-cna@github.com (release-notes, Product, Release Notes)
- product-cna@github.com (release-notes, Product, Release Notes)
- product-cna@github.com (release-notes, Product, Release Notes)
Frequently asked questions
- What is CVE-2026-0573?
- CVE-2026-0573 is a critical-severity vulnerability in Github Enterprise Server, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 9.0/10. Published 2026-02-18.
- How severe is CVE-2026-0573?
- Critical severity. CVSS v3 base score is 9.0 out of 10.