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VulnerabilityPublished

CVE-2026-49372: JetBrains TeamCity · Server-Side Request Forgery

Affects JetBrains TeamCitySource CVE Database V5

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Not known to be exploited · CVSS 7.5 High : upgrade to 2026.1 soon.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2026.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 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 29 Oct 2026.

What to do

Upgrade JetBrains TeamCity to 2026.1.

Affected software

ProductAffectedFixed in
JetBrainsTeamCityAffected
  • =0
Fixed in
  • 2026.1

AI-suggested

If you cannot patch yet, restrict network access to the TeamCity server to trusted sources and monitor for unusual outbound requests. Avoid exposing the build status feature to untrusted users if possible.

Description

CVE-2026-49372 is a high-severity vulnerability in JetBrains TeamCity versions before 2026.1 and 2025.11.5, allowing unauthenticated Server-Side Request Forgery (SSRF) via the build status feature. This vulnerability enables an attacker to make the server perform unauthorized requests, potentially leading to information disclosure. The vulnerability is identified as CWE-918. There are no known exploits in the wild at this time.

References

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