CVE-2026-35461CWE-918

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

Medium · published April 7, 2026

CVSS v3.1
5.0
EPSS
0%
Percentile
21.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00304 · 21.9th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-04-07T14:28Z
EPSS history
Timeline
  • 07 APR 14:28Z
    Papra has a Blind Server-Side Request Forgery (SSRF) via Webhook URL
    cvelistv5