What is CVE-2021-29433?

CVE-2021-29433 is a medium-severity vulnerability in Matrix Sydent, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2021-04-15.

How severe is CVE-2021-29433?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Resource exhaustion in Matrix Sydent

CVE-2021-29433

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 leadi…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.009 (56.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Matrix Sydent
Matrix-org Sydent — versions <= 2.2.0

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-29433?: CVE-2021-29433 is a medium-severity vulnerability in Matrix Sydent, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2021-04-15.
How severe is CVE-2021-29433?: Medium severity. CVSS v3 base score is 4.3 out of 10.