Bug 2531423 (CVE-2026-88883) - CVE-2026-88883 renovate: Renovate: Information disclosure of TLS private keys via incomplete log sanitization
Summary: CVE-2026-88883 renovate: Renovate: Information disclosure of TLS private keys...
Keywords:
Status: NEW
Alias: CVE-2026-88883
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 13:22 UTC by OSIDB Bzimport
Modified: 2026-09-10 13:28 UTC (History)
3 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-10 13:22:02 UTC
Renovate is an automated dependency update tool. In versions before 44.14.4 (and Mend Renovate CE/EE images before 15.4.0 and the mend-renovate-enterprise-edition Helm chart before 10.4.0), log sanitisation for TLS private keys used for Mutual TLS was incomplete. While the value of hostRules[].httpsPrivateKey was redacted in the field itself, the same private key value was not redacted if it also appeared elsewhere — for example in another configuration option or in a log message under a key other than httpsPrivateKey — causing the full private key to be written to Renovate's logs in cleartext. This affects deployments that configure Mutual TLS through hostRules[].httpsPrivateKey without passing the value through the documented `secrets` configuration. Anyone able to read the resulting logs can recover the private key. The issue is fixed in Renovate 44.14.4, which redacts any value supplied as hostRules[].httpsPrivateKey wherever it appears in the logs; as a workaround, supply the key via the `secrets` configuration.


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