limbo.watch
Menu

Likely permanent: GitHub doesn’t review this ecosystem

GHSA-74r9-qxhc-fx53

ext-mbstring on php · published in php/php-src

Read the advisory on GitHub ↗

Fixed in 8.4.21. Dependabot, npm audit and OSV-Scanner probably never will. Find it in your project

Facts

Severity
Medium · CVSS score 6.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected versions (ext-mbstring)
< 8.4.21As entered by the maintainer. Not reviewed.
Fixed in (ext-mbstring)
8.4.21
Affected versions (ext-mbstring)
< 8.5.6As entered by the maintainer. Not reviewed.
Fixed in (ext-mbstring)
8.5.6
CVE
CVE-2026-6104 · published
GitHub Advisory Database
Not reviewed
OSV.dev
Not present
Other CVEs pointing here
None found in the CVE List

If you use ext-mbstring < 8.4.21

Upgrade to 8.4.21 or later. Dependabot, npm audit and OSV-Scanner probably never will.

Timeline

  1. 2026-05-07 12:55 UTC

    Published by the maintainers

    Cites CVE-2026-6104

  2. 2026-10-31 12:46 UTC

    First seen by Limbowatch

    not reviewed · not in OSV

  3. Not expected

    Reviewed by GitHub

    GitHub doesn’t review this ecosystem

Machine-readable record: feed/GHSA-74r9-qxhc-fx53.json