CVE-2026-107205CWE-306

CVE-2026-107205

High · published October 7, 2026

CVSS v3.1
8.6
EPSS
0%
Percentile
32.4
In the wild
Unconfirmed
What it is

LMCache through 0.5.5 contains a missing authentication vulnerability in the multiprocess coordinator that allows remote unauthenticated attackers to access its HTTP fleet control API listening on all interfaces by default. Attackers can register or deregister instances via /instances, overwrite quotas via /quota endpoints, inject events via /events, and enumerate /directory/keys to disrupt caching and disclose placement metadata.

The record
Technical detail
CVSS v3.1
8.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CVSS v4.0
8.8 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
EPSS
0.00394 · 32.4th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-10-07T20:17Z
References (5)
https://github.com/LMCache/LMCache · [email protected]https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/mp_coordinator/app.py#L238-L246 · [email protected]https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/mp_coordinator/config.py#L71 · [email protected]https://github.com/LMCache/LMCache/issues/5508 · [email protected]https://www.vulncheck.com/advisories/lmcache-through-0.5.5-missing-authentication-in-mp-coordinator-fleet-control-api · [email protected]
EPSS history
Timeline
  • 09 OCT 03:26Z
    EPSS moved — → 0%
    epss
  • 07 OCT 15:24Z
    LMCache through 0.5.5 Missing Authentication in MP Coordinator Fleet Control API
    cvelistv5