CVE-2026-86500 Privilege escalation in YouTrack
Medium 5.5
Published
Updated
Check this codebase for CVE-2026-86500 and fix it if it is affected.
What it is: CVE-2026-86500 is a medium-severity vulnerability in JetBrains YouTrack, published on 7 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-86500 in the wild and no public exploit code.
Affected product: JetBrains YouTrack. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-86500/ (Markdown: https://insights.sbomify.com/CVE-2026-86500/index.md)
A user with project update permissions can escalate to Project Admin due to a missing escalation check in JetBrains YouTrack.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86500?
CVE-2026-86500 is a medium-severity vulnerability in JetBrains YouTrack, published on 7 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
In JetBrains YouTrack before 2026.1.14047 a missing escalation check let a user with project update permissions grant themselves Project Admin
Weakness: CWE-266
Which versions are affected by CVE-2026-86500?
How do I fix CVE-2026-86500?
No fix has been published for CVE-2026-86500 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-86500 being exploited?
There is no known exploitation of CVE-2026-86500 in the wild and no public exploit code.
Sources
Also known as GHSA-843f-mhf7-mfc4.