CVE-2026-46713
Last modified
CVE-2026-46713 is a critical-severity vulnerability rated 9.2/10 on the CVSS scale. Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4, contain a vulnerability in the JSON-LD signature validation and compaction process that allows spoofed activities to be accepted as valid. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4, contain a vulnerability in the JSON-LD signature validation and compaction process that allows spoofed activities to be accepted as valid. This issue has been fixed in version 2026.5.4.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:H/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
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| misskey-dev | misskey | >= 12.37.0, < 2026.5.4 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-46713?
How severe is CVE-2026-46713?
How do I fix CVE-2026-46713?
How Strix Helps
- Same Subject, Wrong User: A Cross-Issuer Account Takeover in n8nStrix found an identity-binding bug in n8n's token-exchange flow enabling account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-46702Russh is a Rust SSH client & server library. From version 0.…7.5
- CVE-2026-46703Boxlite is a sandbox service that allows users to create lig…9.6
- CVE-2026-46705Russh is a Rust SSH client & server library. From version 0.…5.3
- CVE-2026-46709Tabby (formerly Terminus) is a highly configurable terminal …7.8
- CVE-2026-46710Notepad++ is a free and open-source source code editor. From…7.8
- CVE-2026-46712Misskey is an open source, federated social media platform. …2.3
- CVE-2026-46714Misskey is an open source, federated social media platform. …5.1
- CVE-2026-46715Flask-Security-Too allows users to add security features to …5.3
- CVE-2026-46716Nezha Monitoring is a self-hostable, lightweight, servers an…9.9
- CVE-2026-46717Nezha Monitoring is a self-hostable, lightweight, servers an…7.7
- CVE-2026-46718Use of Externally-Controlled Input to Select Classes or Code…6.5
- CVE-2026-46719Net::Statsd::Lite versions before 0.9.0 for Perl allowed met…6.5
Are you affected by CVE-2026-46713?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST