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Fencer Intel
high 7.0

CVE-2026-88888 json

Renovate before 44.14.7 Command Injection via Mix organization

published 2mo ago modified last mo. also EUVD-2026-75438 , GHSA-v85g-rq5w-c46q

Unreviewed: the maintainers' own advisory

Published by the maintainers on their GitHub repository renovatebot/renovate. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.

cvss
7.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

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.

Patch / fix

  • npm renovate 44.14.7
  • renovatebot renovate 44.14.7
  • mend renovate-ce 15.4.0
  • mend renovate-ee-server 15.4.0
  • mend renovate-ee-worker 15.4.0
  • mend mend-renovate-ce 15.4.0
  • mend mend-renovate-enterprise-edition 10.4.0

Is CVE-2026-88888 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-88888 updated cvss 7.0

renovate: Renovate: Command Injection via Mix organization

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2mo ago

Exploit prediction

0.89% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 4.0 7.3 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
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 4.0 7.3 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

Affected packages

ecosystem package affected fixed in
npm renovate
<44.14.7
44.14.7

Affected products

  • renovatebot renovate
  • mend renovate-ce
  • mend renovate-ee-server
  • mend renovate-ee-worker
  • mend mend-renovate-ce
  • mend mend-renovate-enterprise-edition

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of renovatebot/renovate published their own advisory on GitHub. Reviewed sources take precedence over it.