Bug 2531445 (CVE-2026-88882) - CVE-2026-88882 renovate: Renovate before 44.11.2 Credential Exfiltration via Link Header
Summary: CVE-2026-88882 renovate: Renovate before 44.11.2 Credential Exfiltration via ...
Keywords:
Status: NEW
Alias: CVE-2026-88882
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-10 13:23 UTC by OSIDB Bzimport
Modified: 2026-09-23 12:34 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-10 13:23:37 UTC
Renovate is a dependency update automation tool. In versions before 44.11.2 (and Mend Renovate CE/EE images and charts before 15.4.0, and mend-renovate-enterprise-edition helm chart before 10.4.0), when listing new package versions from a NuGet registry Renovate follows pagination URLs supplied by the registry in the HTTP `Link` header without verifying that the target has the same origin as the configured registry. Registry credentials are attached to the request for the 'next' page, so a malicious or compromised NuGet registry can return a `Link` header pointing at an attacker-controlled server and cause Renovate to send the registry credentials to that server. Exploitation requires the remote registry to be malicious or compromised; such a registry would normally already have received the credentials on the initial request, so the issue primarily allows the credentials to be delivered to an additional, attacker-chosen host. The fix restricts pagination to the same origin; the previous behaviour can be re-enabled with the RENOVATE_X_NUGET_PAGINATION_ALLOW_CROSS_ORIGIN option.


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