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NVD Vulnerability Details :
CVE-2025-51846
Analyzed
More InfoOfficial Page
Source-9119a7d8-5eab-497f-8521-727c672e3725
View Known Exploited Vulnerability (KEV) details
Published At-30 Apr, 2026 | 17:16
Updated At-04 May, 2026 | 16:52

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.08.7HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Secondary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 4.0
Base score: 8.7
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CPE Matches

XWiki SAS
xwiki
>>cryptpad>>Versions from 2025.3.1(inclusive) to 2026.2.2(exclusive)
cpe:2.3:a:xwiki:cryptpad:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-770Secondary9119a7d8-5eab-497f-8521-727c672e3725
CWE ID: CWE-770
Type: Secondary
Source: 9119a7d8-5eab-497f-8521-727c672e3725
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/JohnPerifanis/cryptpad-cve-2025-51846-advisory/blob/main/README.md9119a7d8-5eab-497f-8521-727c672e3725
Exploit
Third Party Advisory
https://github.com/cryptpad/cryptpad/pull/2239/changes/1e0c06ad8a0c5dab795f85f9730ec2693320c62e9119a7d8-5eab-497f-8521-727c672e3725
Patch
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-119-01.json9119a7d8-5eab-497f-8521-727c672e3725
Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-518469119a7d8-5eab-497f-8521-727c672e3725
Third Party Advisory
Hyperlink: https://github.com/JohnPerifanis/cryptpad-cve-2025-51846-advisory/blob/main/README.md
Source: 9119a7d8-5eab-497f-8521-727c672e3725
Resource:
Exploit
Third Party Advisory
Hyperlink: https://github.com/cryptpad/cryptpad/pull/2239/changes/1e0c06ad8a0c5dab795f85f9730ec2693320c62e
Source: 9119a7d8-5eab-497f-8521-727c672e3725
Resource:
Patch
Hyperlink: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-119-01.json
Source: 9119a7d8-5eab-497f-8521-727c672e3725
Resource:
Third Party Advisory
Hyperlink: https://www.cve.org/CVERecord?id=CVE-2025-51846
Source: 9119a7d8-5eab-497f-8521-727c672e3725
Resource:
Third Party Advisory
Change History
0Changes found

Details not found