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VulnerabilityPublished

CVE-2026-44413: JetBrains TeamCity · Missing Authentication

Affects JetBrains TeamCitySource CVE Database V5

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Not known to be exploited · CVSS 8.2 High : upgrade to 2026.1 2025.11.5 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 18% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2026.1 2025.11.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 May 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 30 Oct 2026.

What to do

Upgrade JetBrains TeamCity to 2026.1 2025.11.5.

Affected software

ProductAffectedFixed in
JetBrainsTeamCityAffected
  • =0
Fixed in
  • 2026.1 2025.11.5

AI-suggested

If you cannot patch yet, restrict authenticated user privileges to minimize exposure and monitor for unusual API access patterns. Avoid exposing TeamCity servers to untrusted networks where possible.

Description

In JetBrains TeamCity before 2026.1 2025.11.5 authenticated users could expose server API to unauthorised access

References

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