CVE-2026-0573 Details
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.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-0573
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.07 Probability of exploitation activity being observed over the next 30 days (20th percentile)
CVSS score for CVE-2026-0573
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
9 Critical
Products affected by CVE-2026-0573
Enterprise Server 3.17.0
Enterprise Server 3.17.6
Enterprise Server 3.18.0
Enterprise Server 3.18.1
Enterprise Server 3.19.0
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2026-0573 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 93 58.13%
CA 8 5.00%
JP 7 4.38%
DE 6 3.75%
FR 6 3.75%
SE 5 3.13%
GB 5 3.13%
AU 5 3.13%
SG 4 2.50%
IE 4 2.50%

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CVE-2026-0573 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 142 90.45%
Education 6 3.82%
Telecommunications 3 1.91%
Manufacturing 2 1.27%
Government/Politics 2 1.27%
Aerospace/Defense 2 1.27%

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