CVE-2026-88889

Remote command execution via unquoted distributionType value

Published Sep 10, 2026 · Updated Sep 10, 2026

Command injection in Renovate before 44.14.7 allows remote authenticated users to execute commands through a crafted Maven Wrapper property. The Maven Wrapper manager interpolates the repository-controlled distributionType value into a Docker-sidecar shell command without quoting it. Exploitation requires repository write access, binarySource=docker, and a Maven Wrapper update, and commands run with Renovate's privileges.

CVSS severity7.8
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Renovate before 44.14.7 allows remote authenticated users to execute commands through a crafted Maven Wrapper property. The Maven Wrapper manager interpolates the repository-controlled distributionType value into a Docker-sidecar shell command without quoting it. Exploitation requires repository write access, binarySource=docker, and a Maven Wrapper update, and commands run with Renovate's privileges.

The record

CVE
CVE-2026-88889
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
Mend.io
Product
Renovate
Classifications
CWE-78, T1059.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <10.4.0
  2. Affected versionversion=0 <15.4.0
  3. Affected versionversion=0 <44.14.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Mend.io · Renovateversion=0 <10.4.0; version=0 <15.4.0; version=0 <44.14.7

Published CVSS scores

7.8GitHubCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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