CVE-2026-49376 json
In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML plugin
published 5mo ago modified 3mo ago also EUVD-2026-33384
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 12%
- public exploits
- 0
- none known
Summary
In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML plugin
Patch / fix
- JetBrains TeamCity 2026.1
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 5mo ago
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected products
- JetBrains TeamCity
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
jetbrains.com
/privacy-security/issues-fixed/
vendor-advisory
Sources
- CVE List CVE-2026-49376
- NVD CVE-2026-49376
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.