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NVD description
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 artifact URLs, preserving the authorization header containing a privileged JWT. An authenticated user could redirect these requests to an attacker-controlled domain, exfiltrate the Actions.ManageOrgs JWT, and leverage it for potential remote code execution. Attackers would require access to the target GitHub Enterprise Server instance and the ability to exploit a legacy redirect to an attacker-controlled domain. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.19 and was fixed in versions 3.19.2, 3.18.4, 3.17.10, 3.16.13, 3.15.17, and 3.14.22. This vulnerability was reported via the GitHub Bug Bounty program.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
CVE-2026-0573 An URL redirection vulnerability was identified in GitHub Enterprise Server that allowed attacker-controlled redirects to leak sensitive authorization tokens. The repos… https://www.cve.org/CVERecord?id=CVE-2026-0573
Post summary
The CVE-2026-0573 describes a URL redirection flaw in GitHub Enterprise Server that can leak authorization tokens through attacker‑controlled redirects.
🔴 CVE-2026-0573 - Critical An URL redirection vulnerability was identified in GitHub Enterprise Server that allowed attacker-controlled redirects to leak sensitive authorization tokens. The repository_pages API inse... https://www.thehackerwire.com/vulnerability/CVE-2026-0573/ https://t.co/p5LjbF1p8z
Post summary
The article discloses a critical URL redirection flaw in GitHub Enterprise Server that allows attacker‑controlled redirects to leak authorization tokens. No PoC, exploit, patch, or active exploitation details are provided.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | github | enterprise_server | - | - | - |