CVE-2026-9491CWE-918ssrf

CVE-2026-9491

Medium · published August 28, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
28.3
In the wild
Unconfirmed
What it is

A server-ide request forgery (SSRF) vulnerability in webhook in Synology Chat Server before 2.4.5-22148 allows remote authenticated users to obtain non-sensitive information.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00358 · 28.3th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-08-28T12:16Z
References (1)
https://www.synology.com/en-global/security/advisory/Synology_SA_26_10 · [email protected]
EPSS history
Timeline
  • 28 AUG 07:07Z
    A server-ide request forgery (SSRF) vulnerability in webhook in Synology Chat Server before 2.4.5-22148 allows remote authenticated users to obtain…
    cvelistv5