🛡️ CVE-2026-40168
🟠 CVSS 8.2 — High ⚠️ Exploit Public CWE-918 NVD
8.2
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Postiz is an AI social media scheduling tool. Prior to 2.21.5, the /api/public/stream endpoint is vulnerable to SSRF. Although the application validates the initially supplied URL and blocks direct private/internal hosts, it does not re-validate the final destination after HTTP redirects. As a result, an attacker can supply a public HTTPS URL that passes validation and then redirects the server-side request to an internal resource.

Details

Severity HIGH
CVSS Score 8.2
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
CWE CWE-918
Public Exploit ⚠️ Yes
Source NVD
Published 2026-04-10
Updated 2026-06-02
Modified 2026-04-14

Affected Packages

Software From version Fixed in
postiz 2.21.5

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