CVE-2026-49372Network attack vector

Unauthenticated SSRF via build status handling

Published May 29, 2026 · Updated May 29, 2026

SSRF in JetBrains TeamCity before 2025.11.5 or 2026.1 allows remote attackers to send server-side requests via build status. JetBrains has not published the affected build-status endpoint, attacker-controlled field, or validation failure that permits target selection. Network access without authentication is sufficient, and the published assessment limits the consequence to disclosure from resources reachable by the server.

CVSS severity7.5
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in JetBrains TeamCity before 2025.11.5 or 2026.1 allows remote attackers to send server-side requests via build status. JetBrains has not published the affected build-status endpoint, attacker-controlled field, or validation failure that permits target selection. Network access without authentication is sufficient, and the published assessment limits the consequence to disclosure from resources reachable by the server.

The record

CVE
CVE-2026-49372
Published
May 29, 2026
Updated
May 29, 2026
Vendor
JetBrains
Product
TeamCity On-Premises
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 29, 2026CVE publishedPublication date reported by the CVE source.
  2. May 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.1, 2025.11.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JetBrains · TeamCity On-Premisesversion=0 <2026.1, 2025.11.5

Published CVSS scores

7.5JetBrainsCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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