How severe is CVE-2026-21575?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Atlassian Sourcetree For Mac

CVE-2026-21575

This High severity RCE (Remote Code Execution) vulnerability was introduced in version 3.4.11 of Sourcetree for Mac and Sourcetree for Windows. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 7.1, allows an authent…

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Atlassian Sourcetree For Mac — versions All versions from 3.4.11 to 3.4.12 inclusive, All versions from 3.4.13

References

security@atlassian.com
security@atlassian.com

Frequently asked questions

What is CVE-2026-21575?: CVE-2026-21575 is a high-severity vulnerability in Atlassian Sourcetree For Mac. CVSS score: 7.1/10. Published 2026-07-21.
How severe is CVE-2026-21575?: High severity. CVSS v3 base score is 7.1 out of 10.