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Medium · 5.0 CVE-2026-35461 EUVD-2026-19655

Papra has a Blind Server-Side Request Forgery (SSRF) via Webhook URL

Published Apr 7, 2026 · Updated Apr 9, 2026 · Assigned by GitHub_M

Description

Papra is a minimalistic document management and archiving platform. Prior to 26.4.0, the Papra webhook system allows authenticated users to register arbitrary URLs as webhook endpoints with no validation of the destination address. The server makes outbound HTTP POST requests to registered URLs, including localhost, internal network ranges, and cloud provider metadata endpoints, on every document event. This vulnerability is fixed in 26.4.0.

Affected products

VendorProductAffectedFixed
papra-hq papra < 26.4.0 —

References