PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-49369 JetBrains CVE debrief

A medium-severity information disclosure vulnerability exists in JetBrains YouTrack versions prior to 2026.1.13162. The flaw allows authenticated users to access sensitive information through the Users and Groups pages. The vulnerability was disclosed on 2026-05-29 and is currently undergoing analysis by NVD. No known exploitation in the wild or ransomware campaign use has been reported.

Vendor
JetBrains
Product
YouTrack
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-29
Original CVE updated
2026-07-22
Advisory published
2026-05-29
Advisory updated
2026-07-22

Who should care

Organizations running JetBrains YouTrack for project management and issue tracking, particularly those with multi-user environments where access segregation between administrative and standard user functions is required. Security teams responsible for application security posture management and compliance with least-privilege access principles should prioritize this patch.

Technical summary

CVE-2026-49369 is an information disclosure vulnerability in JetBrains YouTrack project management and issue tracking software. The vulnerability exists in versions prior to 2026.1.13162 and affects the Users and Groups administrative pages. An attacker with low-privileged authenticated access can exploit this flaw to disclose information that should be restricted. The vulnerability has a CVSS 3.1 score of 4.3 (Medium severity) with the following characteristics: Network attack vector, Low attack complexity, Low privileges required, No user interaction needed, and Low confidentiality impact with no integrity or availability impact. The root cause is categorized under CWE-863 (Incorrect Authorization), indicating improper access control enforcement on sensitive administrative interfaces.

Defensive priority

medium

Recommended defensive actions

  • Upgrade JetBrains YouTrack to version 2026.1.13162 or later
  • Review access controls on Users and Groups pages for unauthorized information exposure
  • Monitor JetBrains security advisories for additional guidance
  • Audit user access logs for suspicious activity on administrative pages

Evidence notes

The CVE description and NVD record confirm the vulnerability affects JetBrains YouTrack before version 2026.1.13162. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N) indicates network-accessible attack vector with low attack complexity, requiring low privileges and no user interaction, resulting in low confidentiality impact. The weakness is classified as CWE-863 (Incorrect Authorization).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-49369 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-49369

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-49369 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-49369

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.