Bug 2571855 (CVE-2026-65967)

Summary: CVE-2026-65967 github.com/getfider/fider: Fider: Server-Side Request Forgery via unvalidated webhook URLs
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerability-draftAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in Fider. Due to insufficient validation of webhook URLs, an authenticated attacker with administrative privileges can trigger Server-Side Request Forgery (SSRF), where the server is tricked into making unintended network requests. An attacker can exploit this issue to access internal network services and cloud metadata endpoints that are normally protected from external access.
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Description OSIDB Bzimport 2026-11-11 18:41:40 UTC 
Fider is a feedback portal for feature requests and suggestions. Prior to version 0.34.0, a Server-Side Request Forgery (SSRF) vulnerability exists in Fider due to insufficient validation of webhook URLs. The application allows user-controlled URLs to be fetched by the server without restricting access to internal or external network resources. This enables attackers with administrative privileges to make arbitrary HTTP requests from the server, potentially accessing internal services or cloud metadata endpoints. This issue has been patched in version 0.34.0.