---
title: "CVE-2026-107207: LMCache - Server Side Request Forgery"
description: "LMCache <= 0.5.5 contains a server-side request forgery caused by improper validation in the frontend monitoring service, letting unauthenticated attackers bypass proxy allowlist to access internal hosts and tamper nodes, exploit requires ability to register arbitrary hosts via POST /api/proxies."
url: https://panop.io/threat-heartbeat/CVE-2026-107207/
---

# CVE-2026-107207 LMCache - Server Side Request Forgery

LMCache <= 0.5.5 contains a server-side request forgery caused by improper validation in the frontend monitoring service, letting unauthenticated attackers bypass proxy allowlist to access internal hosts and tamper nodes, exploit requires ability to register arbitrary hosts via POST /api/proxies.

CVSS base score 7.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.29% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-107207)

## Details

Type

Server Side Request Forgery

Impact

Server Side Request Forgery, Information Disclosure, Data Tampering, Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Published

7 October 2026

Updated

15 October 2026

Weakness

[CWE-306](https://cwe.mitre.org/data/definitions/306.html)

## Vendor fix

Update to the latest version beyond 0.5.5.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-107207](https://nvd.nist.gov/vuln/detail/CVE-2026-107207)
- [https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/lmcache\_frontend/app.py#L567-L604](https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/lmcache_frontend/app.py#L567-L604)
- [https://github.com/LMCache/LMCache/issues/5512](https://github.com/LMCache/LMCache/issues/5512)
- [https://www.vulncheck.com/advisories/lmcache-through-0.5.5-missing-authentication-in-frontend-node-catalog-allows-ssrf-allowlist-bypass](https://www.vulncheck.com/advisories/lmcache-through-0.5.5-missing-authentication-in-frontend-node-catalog-allows-ssrf-allowlist-bypass)
- [https://github.com/LMCache/LMCache](https://github.com/LMCache/LMCache)
- [https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/lmcache\_frontend/app.py#L411-L428](https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/lmcache_frontend/app.py#L411-L428)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)