What is CVE-2026-59796?

CVE-2026-59796 is a high-severity vulnerability in Jetbrains Teamcity, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-07-10.

How severe is CVE-2026-59796?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Jetbrains Teamcity

CVE-2026-59796

In JetBrains TeamCity before 2026.1.2 pipeline modification was possible due to improper permission checks

Vulnerability class: Broken Access Control

Published 2026-07-10 · last modified 2026-07-14.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (26.5th percentile), scored 2026-10-09.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Jetbrains Teamcity — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

www.jetbrains.com/privacy-security/issues-fixed/ (Vendor Advisory)

Frequently asked questions

What is CVE-2026-59796?: CVE-2026-59796 is a high-severity vulnerability in Jetbrains Teamcity, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-07-10.
How severe is CVE-2026-59796?: High severity. CVSS v3 base score is 8.1 out of 10.