CVE-2025-54315CWE-837

CVE-2025-54315

High · published October 2, 2025

CVSS v3.1
7.1
EPSS
0%
Percentile
25.8
In the wild
Unconfirmed
What it is

The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00335 · 25.8th percentile
Weakness
CWE-837 · Improper Enforcement of a Single, Unique Action
Published
2025-10-02T23:15Z
References (2)
https://github.com/matrix-org/matrix-spec/releases/tag/v1.16 · [email protected]https://matrix.org/blog/2025/08/project-hydra-improving-state-res/ · [email protected]
EPSS history
Timeline
  • 02 OCT 00:00Z
    The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness
    cvelistv5