In Zammad 6.4.x before 6.4.2, SSRF can occur. Authenticated admin users can enable webhooks in Zammad, which are triggered as POST requests when certain conditions are met. If a webhook endpoint returned a redirect response, Zammad would follow it automatically with another GET request. This could be abused by an attacker to cause GET requests for example in the local network.
Cite this page
CVE-2025-32358. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2025-32358
Use CWE-918, Zammad vendor hub and Zammad product page to widen CVE-2025-32358 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-34724, CVE-2026-34723 and CVE-2026-34719 for nearby disclosures in the same product family.