← Vulnerability feed

Vulnerability record · CVE-2026-49371 · published 29 May 2026

CVE-2026-49371: Jetbrains teamcity cross-site scripting vulnerability

Jetbrains · Teamcity

In JetBrains TeamCity before 2026.1.1 reflected XSS in the keyword filter was possible

8.2 CVSS 3.1 High EPSS 0.35% · top 73.7% CWE-79 · Cross-site scripting
8.2CVSS 3.1 base score
0.35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
22 Jul 2026Last modified by NVD

Description

In JetBrains TeamCity before 2026.1.1 reflected XSS in the keyword filter was possible

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.jetbrains.com/privacy-security/issues-fixed/ Vendor Advisory

Track CVE-2026-49371 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-63077JetBrains TeamCity unauthenticated RCE via agent polling deserializationJetBrains TeamCity before 2026.1.3 and 2025.11.7 deserializes untrusted data received through the agent polling protocol, allowing unauthenticated re…KEVEPSS 9.8%analysed9.8CVE-2024-27198JetBrains TeamCity authentication bypass allows admin actionsJetBrains TeamCity before 2023.11.4 contains an authentication bypass via an alternate path (CWE-288), letting an unauthenticated attacker reach func…KEVEPSS 100%analysed9.8CVE-2023-42793JetBrains TeamCity authentication bypass leads to remote code executionJetBrains TeamCity before 2023.05.4 contains an authentication bypass via an alternate path, classified as CWE-288 and CWE-306, that allows an unauth…KEVEPSS 100%analysed7.3CVE-2024-27199JetBrains TeamCity path traversal enables limited admin actionsJetBrains TeamCity before 2023.11.4 is vulnerable to relative path traversal that lets an unauthenticated remote party perform limited administrative…KEVEPSS 100%analysed10.0CVE-2026-65906Jetbrains teamcity code injection vulnerabilityIn JetBrains TeamCity before 2026.1.2, 2025.11.6 сode execution via Kotlin DSL sandbox escape was possibleEPSS 0.66%9.8CVE-2025-54530Jetbrains teamcity incorrect default permissions vulnerabilityIn JetBrains TeamCity before 2025.07 privilege escalation was possible due to incorrect directory permissionsEPSS 0.18%9.8CVE-2025-46433Jetbrains teamcity relative path traversal vulnerabilityIn JetBrains TeamCity before 2025.03.1 improper path validation in loggingPreset parameter was possibleEPSS 0.55%9.8CVE-2024-41827Jetbrains teamcity insufficient session expiration vulnerabilityIn JetBrains TeamCity before 2024.07 access tokens could continue working after deletion or expirationEPSS 0.40%

Source: NIST National Vulnerability Database (record CVE-2026-49371), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.