SB2024060201 - Input validation error in Misskey



SB2024060201 - Input validation error in Misskey

Published: June 2, 2024 Updated: April 28, 2026

Security Bulletin ID SB2024060201
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Input validation error (CVE-ID: CVE-2024-32983)

The vulnerability allows a remote attacker to impersonate remote accounts and perform spoofed activities.

The vulnerability exists due to improper input validation in incoming signed ActivityPub activity object processing when handling signed ActivityPub activities. A remote attacker can submit a specially crafted signed activity object to impersonate remote accounts and perform spoofed activities.

Exploitation requires access to a valid Linked Data Signature by the target account.


Remediation

Install update from vendor's website.