CVE-2026-75048
Stored XSS in JetBrains YouTrack via fenced code-block language label.
Is CVE-2026-75048 being exploited?
Not confirmed. CVE-2026-75048 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.20% probability of exploitation in the next 30 days.
How severe is CVE-2026-75048?
CVE-2026-75048 is rated High with a CVSS score of 8.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-75048?
Yes. A fix has been recorded for CVE-2026-75048. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-75048 affect?
CVE-2026-75048 affects JetBrains YouTrack (Server/Cloud) versions before 2026.2.18068. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-75048?
Upgrade YouTrack to 2026.2.18068+ and restrict/sanitize user-provided code-block labels.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Stored XSS lets remote attacker inject JavaScript executed in victims' browsers, enabling session theft and actions as the user.
Patch when possible
- affected< 2026.2.18068
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.