CVE-2026-49368: CWE-79 in JetBrains YouTrack
CVE-2026-49368 is a high-severity stored cross-site scripting (XSS) vulnerability in JetBrains YouTrack versions before 2026.1.13162. The vulnerability allows an attacker with limited privileges to inject malicious scripts into project notification templates, which can be executed in the context of other users. This can lead to complete compromise of confidentiality and integrity of affected users' data. No official patch or remediation guidance is currently confirmed from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability (CWE-79) affects JetBrains YouTrack prior to version 2026.1.13162 and involves stored XSS in project notification templates. An attacker with limited privileges and requiring user interaction can inject malicious scripts that execute with high impact on confidentiality and integrity. The CVSS v3.1 score is 8.7, reflecting network attack vector, low attack complexity, limited privileges required, user interaction needed, and scope change with high confidentiality and integrity impact but no availability impact. No patch or official remediation level has been provided by JetBrains yet.
Potential Impact
Successful exploitation can lead to the execution of arbitrary scripts in the context of other users, potentially exposing sensitive information or allowing unauthorized actions within YouTrack. The vulnerability impacts confidentiality and integrity severely but does not affect availability. There are no known active exploits reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution with project notification templates and limit privileges to trusted users to reduce risk.
CVE-2026-49368: CWE-79 in JetBrains YouTrack
Description
CVE-2026-49368 is a high-severity stored cross-site scripting (XSS) vulnerability in JetBrains YouTrack versions before 2026.1.13162. The vulnerability allows an attacker with limited privileges to inject malicious scripts into project notification templates, which can be executed in the context of other users. This can lead to complete compromise of confidentiality and integrity of affected users' data. No official patch or remediation guidance is currently confirmed from the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 8.7high
Affected software
pkg:maven/com.jetbrains/youtrackRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-79) affects JetBrains YouTrack prior to version 2026.1.13162 and involves stored XSS in project notification templates. An attacker with limited privileges and requiring user interaction can inject malicious scripts that execute with high impact on confidentiality and integrity. The CVSS v3.1 score is 8.7, reflecting network attack vector, low attack complexity, limited privileges required, user interaction needed, and scope change with high confidentiality and integrity impact but no availability impact. No patch or official remediation level has been provided by JetBrains yet.
Potential Impact
Successful exploitation can lead to the execution of arbitrary scripts in the context of other users, potentially exposing sensitive information or allowing unauthorized actions within YouTrack. The vulnerability impacts confidentiality and integrity severely but does not affect availability. There are no known active exploits reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution with project notification templates and limit privileges to trusted users to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-05-29T18:07:53.529Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a19dc0ae29bf47b50ff8619
Added to database: 05/29/2026, 18:33:46 UTC
Last enriched: 06/05/2026, 21:21:02 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 53
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