VULNERABILITY INTELLIGENCE

CVE-2021-29433

CVSS score4.3 MEDIUM
EPSS probability0.93%
CISA KEVNot currently listed
Published2021-04-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Description

Sydent is a reference Matrix identity server. In Sydent versions 2.2.0 and prior, sissing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhaustion. A patch for the vulnerability is in version 2.3.0. No workarounds are known to exist.

Weakness classification

  • security-advisories@github.com: CWE-20
  • nvd@nist.gov: CWE-400

Primary references