Vulnerability · Published Jul 16, 2026 · Assigned by GitHub_M

CVE-2026-61718bunkerweb: Read-only Web UI users can delete job cache files due to missing authorization on /cache/ routes

Medium 5.4

In plain English

A medium-severity missing authorization in bunkerweb from bunkerity. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.4%top 62.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
bunkerity	bunkerweb	>= 1.6.2, < 1.6.12

Weakness: CWE-285, CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References

https://github.com/bunkerity/bunkerweb/security/advisories/GHSA-q7rm-935c-v39g x_refsource_CONFIRM
https://github.com/bunkerity/bunkerweb/commit/685ccbbe7d204132a843a7b7fd802d1bdb3f20a9 x_refsource_MISC
https://github.com/bunkerity/bunkerweb/releases/tag/v1.6.12 x_refsource_MISC