What is CVE-2021-31913?

CVE-2021-31913 is a high-severity vulnerability in Jetbrains Teamcity, classified under Improper Validation of Integrity Check Value. CVSS score: 7.5/10. Published 2021-05-11.

How severe is CVE-2021-31913?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-31913 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Jetbrains Teamcity

CVE-2021-31913

In JetBrains TeamCity before 2020.2.3, insufficient checks of the redirect_uri were made during GitHub SSO token exchange.

EPSS: 0.007 (49.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Jetbrains Teamcity
N/a — versions n/a

Weakness classification (CWE)

CWE-354 — Improper Validation of Integrity Check Value

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-31913?: CVE-2021-31913 is a high-severity vulnerability in Jetbrains Teamcity, classified under Improper Validation of Integrity Check Value. CVSS score: 7.5/10. Published 2021-05-11.
How severe is CVE-2021-31913?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-31913 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.