CVE-2026-40168
Postiz is an AI social media scheduling tool.
Published Apr 10, 2026 · updated Jun 17, 2026 · gitroom postiz
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.
Code
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Timeline
Detection, updates, and resolution for this record.
Apr 10, 2026 · NIST NVD
Detected
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-si
Jun 17, 2026 · NIST NVD
Updated
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-si
Affected
- cpe gitroom/postizversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-40168
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-40168
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 r
nvd.nist.gov