CVE-2026-35461

Name: CVE-2026-35461
Creator: NVD / NIST
Published: 2026-04-07T15:17:44.047+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2026-35461 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.21%

11.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Papra	Papra	< 26.4.0

References

https://github.com/papra-hq/papra/security/advisories/GHSA-cjw7-qg95-58mqExploit, Vendor Advisory
https://github.com/papra-hq/papra/security/advisories/GHSA-cjw7-qg95-58mqExploit, Vendor Advisory

Timeline

Published: Apr 7, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-35461?

How severe is CVE-2026-35461?

CVE-2026-35461 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2026-35461?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-35461?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST