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VulnerabilityPublished

CVE-2026-123325: JetBrains YouTrack · Untrusted Functionality Inclusion

Affects JetBrains YouTrackSource CVE Database V5

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Not known to be exploited · CVSS 7.1 High : upgrade to 2025.3.170763 soon.

Data as of 6 Nov 2026, 10:49 UTC

CVSS 3.1 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (JetBrains)CVSS 3.17.1
Patch
Available – fixed in 2025.3.170763
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade JetBrains YouTrack to 2025.3.170763.

Affected software

ProductAffectedFixed in
JetBrainsYouTrackAffected
  • =0
Fixed in
  • 2025.3.170763

AI-suggested

A fix is available in JetBrains YouTrack version 2025.3.170763. Users should upgrade to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.

Description

CVE-2026-123325 is a high-severity vulnerability in JetBrains YouTrack that allows inclusion of untrusted remote code via the plugin sandbox page. This affects versions before 2025.3.170763 and certain 2026 releases. The flaw is classified under CWE-829, indicating inclusion of functionality from an untrusted control sphere.

References

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