What is CVE-2026-123852?

CVE-2026-123852 is a high-severity vulnerability in Jetbrains Junie GitHub Action, classified under Incorrect Authorization. CVSS score: 7.4/10. Published 2026-11-06.

How severe is CVE-2026-123852?

High severity. CVSS v3 base score is 7.4 out of 10.

Auth bypass in Jetbrains Junie GitHub Action

CVE-2026-123852

In JetBrains Junie GitHub Action before 1.8.0 code execution with workflow credentials was possible via fork updates

Vulnerability class: Broken Access Control

Published 2026-11-06 · last modified 2026-11-06.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Jetbrains Junie GitHub Action

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

www.jetbrains.com/privacy-security/issues-fixed/

Frequently asked questions

What is CVE-2026-123852?: CVE-2026-123852 is a high-severity vulnerability in Jetbrains Junie GitHub Action, classified under Incorrect Authorization. CVSS score: 7.4/10. Published 2026-11-06.
How severe is CVE-2026-123852?: High severity. CVSS v3 base score is 7.4 out of 10.