{"id":"CVE-2026-88883","state":"PUBLISHED","title":"Renovate before 44.14.4 TLS Private Key Log Sanitisation","description":"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.","publishedAt":"2026-09-10T13:05:33.976Z","updatedAt":"2026-09-29T22:10:39.458Z","severity":{"score":8.3,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["renovatebot renovate","mend renovate-ce","mend renovate-ee-server","mend renovate-ee-worker","mend mend-renovate-ce","mend mend-renovate-enterprise-edition"],"affected":[{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"44.14.4","versionType":"semver"},{"version":"44.14.4","status":"unaffected","versionType":"semver"}]},{"vendor":"mend","product":"renovate-ce","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"15.4.0","versionType":"semver"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"mend","product":"renovate-ee-server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"15.4.0","versionType":"semver"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"mend","product":"renovate-ee-worker","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"15.4.0","versionType":"semver"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"mend","product":"mend-renovate-ce","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"15.4.0","versionType":"semver"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"mend","product":"mend-renovate-enterprise-edition","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"10.4.0","versionType":"semver"},{"version":"10.4.0","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/renovatebot/renovate/security/advisories/GHSA-4hmw-qw74-vrhm","https://www.vulncheck.com/advisories/renovate-before-44.14.4-tls-private-key-log-sanitisation"],"weaknesses":["CWE-532"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/88xxx/CVE-2026-88883.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-88883","state":"PUBLISHED","datePublished":"2026-09-10T13:05:33.976Z","dateUpdated":"2026-09-29T22:10:39.458Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-10T11:25:34.912Z"},"containers":{"cna":{"title":"Renovate before 44.14.4 TLS Private Key Log Sanitisation","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"44.14.4","versionType":"semver"},{"version":"44.14.4","status":"unaffected","versionType":"semver"}]},{"vendor":"mend","product":"renovate-ce","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"15.4.0","versionType":"semver"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"mend","product":"renovate-ee-server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"15.4.0","versionType":"semver"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"mend","product":"renovate-ee-worker","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"15.4.0","versionType":"semver"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"mend","product":"mend-renovate-ce","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"15.4.0","versionType":"semver"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"mend","product":"mend-renovate-enterprise-edition","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"10.4.0","versionType":"semver"},{"version":"10.4.0","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/renovatebot/renovate/security/advisories/GHSA-4hmw-qw74-vrhm","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-4hmw-qw74-vrhm)"},{"url":"https://www.vulncheck.com/advisories/renovate-before-44.14.4-tls-private-key-log-sanitisation","name":"VulnCheck Advisory: Renovate before 44.14.4 TLS Private Key Log Sanitisation","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.3,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-532","lang":"en","description":"Insertion of Sensitive Information into Log File","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-29T22:10:39.458Z"},"datePublic":"2026-08-27T00:00:00.000Z","credits":[{"lang":"en","value":"jamietanna","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T14:18:26.314591Z","id":"CVE-2026-88883","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-10T14:55:53.845Z"}}]}}}