CVE-2025-51846

7.5 HIGH

Published: April 30, 2026 Modified: May 04, 2026

Description

CryptPad 2025.3.1 allows unbounded WebSocket frame flood. A remote, unauthenticated attacker can significantly degrade or deny service for all users of a CryptPad instance. Fixed in 2026.2.2.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/JohnPerifanis/cryptpad-cve-2025-51846-advisory/blob/main/README.md

Source: 9119a7d8-5eab-497f-8521-727c672e3725

Exploit Third Party Advisory

https://github.com/cryptpad/cryptpad/pull/2239/changes/1e0c06ad8a0c5dab795f85f9730ec2693320c62e

Source: 9119a7d8-5eab-497f-8521-727c672e3725

Patch

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-119-01.json

Source: 9119a7d8-5eab-497f-8521-727c672e3725

Third Party Advisory

https://www.cve.org/CVERecord?id=CVE-2025-51846

Source: 9119a7d8-5eab-497f-8521-727c672e3725

Third Party Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score

7.5 / 10.0

EPSS (Exploit Probability)

0.1%

24th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-770

Affected Vendors

xwiki

Related CVEs