CVE-2026-113620CWE-347

CVE-2026-113620

Critical · published October 20, 2026

CVSS v3.1
9.8
EPSS
0%
Percentile
20.1
In the wild
Unconfirmed
What it is

In Eclipse ioFog Controller versions 3.8.0 through 3.9.1, operator WebSocket upgrades on the exec and log routes do not verify the bearer JWT. The payload is decoded and its groups or roles are used as RBAC subjects. A self-minted token whose groups contain admin matches the built-in admin role, with no account and no RoleBinding. The attacker can open an exec or log session for a microservice or fog whose UUID they already know. HTTP routes are not affected: they verify the token before RBAC. Agent WebSockets verify the fog token and are not affected.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00286 · 20.1th percentile
Weakness
CWE-347 · Improper Verification of Cryptographic Signature
Published
2026-10-20T17:16Z
References (4)
EPSS history
Timeline
  • 22 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 20 OCT 12:34Z
    Eclipse ioFog operator WebSocket accepts an unverified JWT
    cvelistv5
  • 20 OCT 12:34Z
    Eclipse ioFog operator WebSocket accepts an unverified JWT
    cvelistv5