Renovate before 44.14.4 TLS Private Key Log Sanitisation
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-532.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| renovatebot | renovate | before 44.14.4 | 44.14.4 | Patch available | CNA |
| mend | renovate-ce | before 15.4.0 | 15.4.0 | Patch available | CNA |
| mend | renovate-ee-server | before 15.4.0 | 15.4.0 | Patch available | CNA |
| mend | renovate-ee-worker | before 15.4.0 | 15.4.0 | Patch available | CNA |
| mend | mend-renovate-ce | before 15.4.0 | 15.4.0 | Patch available | CNA |
| mend | mend-renovate-enterprise-edition | before 10.4.0 | 10.4.0 | Patch available | CNA |
- renovate Vendorrenovatebot Affected before 44.14.4 Fixed in 44.14.4 Patch available CNA
- renovate-ce Vendormend Affected before 15.4.0 Fixed in 15.4.0 Patch available CNA
- renovate-ee-server Vendormend Affected before 15.4.0 Fixed in 15.4.0 Patch available CNA
- renovate-ee-worker Vendormend Affected before 15.4.0 Fixed in 15.4.0 Patch available CNA
- mend-renovate-ce Vendormend Affected before 15.4.0 Fixed in 15.4.0 Patch available CNA
- mend-renovate-enterprise-edition Vendormend Affected before 10.4.0 Fixed in 10.4.0 Patch available CNA
Remediation
- Fix · CNA renovate (renovatebot) Fixed in 44.14.4
- Fix · CNA renovate-ce (mend) Fixed in 15.4.0
- Fix · CNA renovate-ee-server (mend) Fixed in 15.4.0
- Fix · CNA renovate-ee-worker (mend) Fixed in 15.4.0
- Fix · CNA mend-renovate-ce (mend) Fixed in 15.4.0
- Fix · CNA mend-renovate-enterprise-edition (mend) Fixed in 10.4.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
mend-renovate-ce, mend-renovate-enterprise-edition and 3 more products 10.4.0, 15.4.0
10 records Highest priority Priority MEDIUM 5 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2026-60271 Renovate before 44.11.2 Credential Exfiltration via Link HeaderPriority MEDIUM 46
- TI-2026-60266 Renovate before 44.11.2 Credential Exfiltration via Link HeaderPriority MEDIUM 46
- TI-2026-60265 Renovate before 44.11.3 Credential Exfiltration via Link HeaderPriority MEDIUM 46
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-88883
- 2026-10-03 Alias added: GHSA-qfw4-mmpc-67w5
References
More renovatebot vulnerabilities
- TI-2026-53338 Renovate 39.53.0 before 40.33.0 Command Injection via gleam manager CVSS 4.0HIGH 8.4
- TI-2026-53337 Renovate 31.51.0 before 40.33.0 Command Injection via helmv3 CVSS 4.0HIGH 8.4
- TI-2026-53336 Renovate 32.135.0 before 40.33.0 Command Injection via hermit CVSS 4.0HIGH 8.4
- TI-2026-53335 Renovate 35.63.0 before 40.33.0 Command Injection via npm CVSS 4.0HIGH 8.4
- TI-2026-53333 Renovate before 42.68.5 Remote Code Execution via Gradle Wrapper CVSS 4.0HIGH 8.4
- TI-2026-60271 Renovate before 44.11.2 Credential Exfiltration via Link Header CVSS 4.0CRITICAL 9.2
Sources
- CVE-2026-88883 · CVE Program
- CVE-2026-88883 · NVD
- FIRST EPSS
- GHSA-qfw4-mmpc-67w5 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-88883 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences