Vulnerability Description
bunkerweb is an Open-source and next-generation Web Application Firewall (WAF). From 1.6.2 until 1.6.12, the BunkerWeb web UI BiscuitMiddleware authorization bypass list included the /cache/ URL prefix, so routes in src/ui/app/routes/cache.py protected only by @login_required, including POST /cache/delete, allowed low-privilege read-only reader accounts to permanently delete job cache files containing blacklist, greylist, DNSBL, CrowdSec, GeoIP, ModSecurity CRS, Let's Encrypt, ACME, and custom configuration data. This issue is fixed in version 1.6.12.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/bunkerity/bunkerweb/commit/685ccbbe7d204132a843a7b7fd802d1bdb
- https://github.com/bunkerity/bunkerweb/releases/tag/v1.6.12
- https://github.com/bunkerity/bunkerweb/security/advisories/GHSA-q7rm-935c-v39g
FAQ
What is CVE-2026-61718?
CVE-2026-61718 is a vulnerability with a CVSS score of 5.4 (MEDIUM). bunkerweb is an Open-source and next-generation Web Application Firewall (WAF). From 1.6.2 until 1.6.12, the BunkerWeb web UI BiscuitMiddleware authorization bypass list included the /cache/ URL prefi...
How severe is CVE-2026-61718?
CVE-2026-61718 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-61718?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.