CVE-2026-86485
Received Received - Intake

JetBrains YouTrack IP Spoofing via HTTP Headers

Publication date: 2026-09-07

Last updated on: 2026-09-07

Assigner: JetBrains s.r.o.

Description
In JetBrains YouTrack before 2026.2.18634 iP spoofing via HTTP headers allowed forged Bitbucket webhooks

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Meta Information

Published
2026-09-07
Last Modified
2026-09-07
Generated
2026-09-07
AI Q&A
2026-09-07
EPSS Evaluated
N/A
NVD
CVE-2026-86485
EUVD
EUVD-2026-72501

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetbrains youtrack to 2026.2.18634 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-291 The product uses an IP address for authentication.

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Executive Summary

This vulnerability in JetBrains YouTrack before 2026.2.18634 allows IP spoofing via HTTP headers. This means an attacker could forge Bitbucket webhooks by manipulating HTTP headers to appear as if they are coming from a trusted source.

Impact Analysis

This vulnerability could allow unauthorized actions to be triggered by forged webhooks, potentially leading to data breaches or unauthorized access to sensitive information. It may also enable attackers to bypass security controls that rely on IP-based authentication.

Mitigation Strategies

Update JetBrains YouTrack to version 2026.2.18634 or later to address the HTTP header spoofing vulnerability.

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