Renovate before 44.11.2 Credential Exfiltration via Link Header
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.
Summary
Renovate is a dependency update automation tool. When listing tags/digests for a container image, Renovate follows pagination links supplied by the remote registry in the HTTP Link header and attaches the registry credentials to the follow-up request without verifying that the pagination URL has the same origin as the original registry. A malicious or compromised container registry can therefore specify a Link header pointing to an attacker-controlled host and receive the credentials Renovate uses for that registry. Exploitation requires that the target has container (Docker) dependencies and is already interacting with the malicious or compromised registry. This is fixed in Renovate 44.11.2 (npm and renovate/renovate images), Mend Renovate CE/EE 15.4.0 and the mend-renovate-enterprise-edition Helm chart 10.4.0; the same-origin check can be disabled with RENOVATE_X_DOCKER_PAGINATION_ALLOW_CROSS_ORIGIN.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 44.11.2 | 44.11.2 | 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 44.11.2 Fixed in 44.11.2 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 44.11.2
- 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-2026-60266 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
- TI-2026-60264 Renovate before 44.11.3 Credential Exfiltration via Link HeaderPriority MEDIUM 46
- Release ·
renovatebot renovate 44.11.2
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2026-60266 Renovate before 44.11.2 Credential Exfiltration via Link HeaderPriority MEDIUM 46
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-88887
- 2026-10-03 Alias added: GHSA-xxxv-4m67-3vm5
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-2026-60266 Renovate before 44.11.2 Credential Exfiltration via Link Header CVSS 4.0CRITICAL 9.2
Sources
- CVE-2026-88887 · CVE Program
- CVE-2026-88887 · NVD
- FIRST EPSS
- GHSA-xxxv-4m67-3vm5 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-88887 · 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