What is GHSA-6vfc-74mf-qrmj?

GHSA-6vfc-74mf-qrmj is a security advisory published by GitHub Security Advisories with High severity. OpenWrt LuCI contains an overly permissive ACL definition in luci-mod-system-mounts that grants...

Which CVE IDs does GHSA-6vfc-74mf-qrmj cover?

GHSA-6vfc-74mf-qrmj covers the following CVE IDs: CVE-2026-72840. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-6vfc-74mf-qrmj?

GHSA-6vfc-74mf-qrmj has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-6vfc-74mf-qrmjHighCVSS 8.8

OpenWrt LuCI contains an overly permissive ACL definition in luci-mod-system-mounts that grants...

Vendor

GitHub Security Advisories

Published

August 14, 2026

Last Modified

August 14, 2026

🔗 CVE IDs covered (1)

CVE-2026-72840 →

📋 Description

OpenWrt LuCI contains an overly permissive ACL definition in luci-mod-system-mounts that grants write access to /etc/crontabs/root to users intended only for mount configuration. Authenticated users with only the mount-configuration ACL group can append arbitrary cron entries via ubus file.write, which the default busybox crond daemon executes as root within one minute.

🔗 References (4)

https://github.com/openwrt/luci/security/advisories/GHSA-v5f9-62c7-cw29
https://nvd.nist.gov/vuln/detail/CVE-2026-72840
https://www.vulncheck.com/advisories/openwrt-luci-luci-mod-system-mounts-acl-root-rce-via-crontab-write
https://github.com/advisories/GHSA-6vfc-74mf-qrmj