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Renovate CVE-2026-88888

| EUVDEUVD-2026-75438 HIGH
OS Command Injection (CWE-78)
2026-09-10 VulnCheck GHSA-x7x2-5fmx-8wj5
7.3
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
7.3 HIGH
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/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
7.5 HIGH

Network vector because the attacker delivers the payload through a registry package; AC:H and PR:L reflect the required docker mode configuration and registry write access.

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

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
POC Analysis Generated
Sep 10, 2026 - 15:22 vuln.today
Patch available
Sep 10, 2026 - 14:02 EUVD
Analysis Generated
Sep 10, 2026 - 13:54 vuln.today
CVE Published
Sep 10, 2026 - 13:05 cve.org
HIGH 7.3

DescriptionCVE.org

Renovate before 44.14.7 contains a command injection vulnerability in the Mix manager when processing private dependencies with unescaped organization parameters. Attackers can inject shell metacharacters through malicious package names to execute arbitrary commands as the Renovate user in binarySource=docker mode.

AnalysisAI

Command injection in Renovate's Mix package manager allows an attacker who can control private dependency package names to execute arbitrary OS commands as the Renovate process user. Versions before 44.14.7 fail to escape organization parameters before passing them to shell commands during dependency resolution in binarySource=docker mode. …

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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 Exploitation requires three concurrent conditions: (1) Renovate must be configured with binarySource=docker in its configuration - this is a non-default setting used primarily in self-hosted enterprise deployments; (2) the Renovate instance must be managing a repository that includes Elixir Mix private dependencies with organization-scoped package names on a private Hex.pm registry; (3) the attacker must control or be able to influence at least one of those organization-scoped package names, either by having write access to the private registry, performing a supply-chain compromise, or being an insider who can introduce a maliciously named package. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 7.3 reflects meaningful constraints: AV:L (local execution context in the container), AC:H (non-trivial prerequisites), and AT:P (specific attack requirements including docker mode and Mix private dependency processing). … 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 to version 44.14.7 or later, which resolves the shell metacharacter injection by properly escaping organization parameters before shell invocation. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory your use of Renovate and determine whether it processes Elixir/Mix dependencies with binarySource=docker configuration. …

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

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CVE-2026-88888 vulnerability details – vuln.today

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