CVE-2026-86486 Auth bypass in YouTrack
Attackers can bypass authentication in JetBrains YouTrack if the VCS webhook secret is left blank, allowing unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86486?
CVE-2026-86486 is a low-severity authentication bypass vulnerability in JetBrains YouTrack, published on 7 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In JetBrains YouTrack before 2026.2.18634 the generic VCS webhook handler failed open when its secret was blank
Weakness: CWE-306
Which versions are affected by CVE-2026-86486?
How do I fix CVE-2026-86486?
No fix has been published for CVE-2026-86486 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-86486 being exploited?
There is no known exploitation of CVE-2026-86486 in the wild and no public exploit code.
Sources
Also known as GHSA-rjvc-hh2w-62q5.