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Renovate CVE-2026-88884

| EUVDEUVD-2026-75434 MEDIUM
Incorrect Authorization (CWE-863)
2026-09-10 VulnCheck GHSA-x9q2-x5p7-v69h
6.9
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
6.8 MEDIUM

AC:H because exploitation requires both non-default minimumReleaseAge config and digest-type dependencies; S:C/I:H because attacker code executes in the CI pipeline, a separate system.

3.1 AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
4.0 AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

4
Metadata Corrected
Sep 10, 2026 - 14:40 vuln.today
tag: Authentication Bypass removed
Analysis Generated
Sep 10, 2026 - 14:13 vuln.today
Patch available
Sep 10, 2026 - 14:02 EUVD
CVE Published
Sep 10, 2026 - 13:05 cve.org
MEDIUM 6.9

DescriptionCVE.org

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.

AnalysisAI

Renovate's minimumReleaseAge supply-chain defense control is not enforced for digest-type dependency updates, allowing a newly published - potentially malicious - package digest to immediately trigger a pull request and CI pipeline execution before the configured stability waiting period elapses. All Renovate versions before 44.3.1 and Mend Renovate CE/EE images before 15.4.0 are affected when repositories combine the minimumReleaseAge setting with digest-pinned dependencies such as GitHub Actions commit SHAs, Docker images, Go modules, or NuGet packages. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Three simultaneous conditions are required: (1) the target repository must have Renovate configured with a non-zero `minimumReleaseAge` value - this is the specific non-default configuration setting the flaw bypasses; (2) the repository must have at least one dependency tracked via digest-based updates, such as a GitHub Actions workflow pinned to a commit SHA, a Docker image referenced by digest, a Go module, or a NuGet package; and (3) the attacker must be able to publish a new digest to the relevant upstream package registry for one of those dependencies, requiring either write access to that registry or a prior supply-chain compromise of the upstream package. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 6.9 (AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N) reflects network-reachable, unauthenticated triggering via a registry publish, but rates both vulnerable-system and subsequent-system integrity impact as Low. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade Renovate OSS to version 44.3.1 or later; upgrade Mend Renovate CE/EE Docker images to 15.4.0 or later; upgrade the mend-renovate-ce Helm chart to 15.4.0 or later and the mend-renovate-enterprise-edition Helm chart to 10.4.0 or later. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-88884 vulnerability details – vuln.today

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