Medium severity · published Sep 10, 2026
CVE-2026-88884
Renovate before 44.3.1 Authentication Bypass via Digest Updates
5.8
CVSS
0.3%
EPSS
No
On KEV
Description
Renovate is a dependency update automation tool. In versions before 44.3.1 (and Mend Renovate CE/EE images before 15.4.0, mend-renovate-ce Helm chart before 15.4.0, mend-renovate-enterprise-edition Helm chart before 10.4.0), digest updates are not subject to the internal `minimumReleaseAge` (stability age) checks. When a repository configures `minimumReleaseAge` and has dependencies with `updateType=digest` — for example GitHub Actions pinned to a commit SHA with a floating tag, Docker images, Go modules or NuGet packages — Renovate will still open a pull request for a newly published digest, marked only with a pending `renovate/stability-days` status check. A newly published, potentially malicious dependency version can therefore cause a PR to be raised and CI workflows to potentially run before the configured minimum release age has elapsed, which is precisely what the Minimum Release Age control is intended to prevent. The issue is fixed in Renovate 44.3.1; as a workaround, digest updates can be disabled or gated behind `dependencyDashboardApproval`.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
mend-renovate-ce · mend
before 15.4.0 · source: vendor
ME
mend-renovate-enterprise-edition · mend
before 10.4.0 · source: vendor
RE
renovate · renovatebot
before 44.3.1 · source: vendor
RE
renovate-ce · mend
before 15.4.0 · source: vendor
RE
renovate-ee-server · mend
before 15.4.0 · source: vendor
RE
renovate-ee-worker · mend
before 15.4.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-88884
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-88884
vendor-advisory
https://github.com/renovatebot/renovate/security/advisories/GHSA-g4qr-hw2h-687r
third-party-advisory
https://www.vulncheck.com/advisories/renovate-before-44.3.1-authentication-bypass-via-digest-updates
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