CVEvulnerability
CVE-2026-40168
8.2 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-10
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
- Weaknesses
- CWE-918
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.
Affected configurations
• gitroom postiz (< 2.21.5)
Related
Weakness · CWE (1)
- CWE-918 Server-Side Request Forgery weakness
References
- https://github.com/gitroomhq/postiz-app/commit/30e8b777098157362769226d1b46d83ad616cb06 Patch
- https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.5 Product, Release Notes
- https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww Exploit, Mitigation, Vendor Advisory
- https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww Exploit, Mitigation, Vendor Advisory