CVE-2026-49368 Cross-site scripting in YouTrack
Stored XSS in project notification templates allows attackers to execute scripts in victim browsers, potentially leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-49368?
CVE-2026-49368 is a high-severity cross-site scripting vulnerability in Jetbrains Youtrack, published on 29 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
In JetBrains YouTrack before 2026.1.13162 stored XSS in project notification templates was possible
Weakness: CWE-79
Which versions are affected by CVE-2026-49368?
It affects 1 product.
Products include Jetbrains Youtrack.
How do I fix CVE-2026-49368?
No fix has been published for CVE-2026-49368 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-49368 being exploited?
There is no known exploitation of CVE-2026-49368 in the wild and no public exploit code.
Other vulnerabilities in Jetbrains Youtrack
Sources
Also known as GHSA-fq9q-7rvg-h4m2.