In JetBrains Ktor before 3.6.1 missing Domain attribute validation in client cookie storage allowed cookie injection

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Jetbrains
  • Ktor

No data.

No data.

References
Link Providers
https://www.jetbrains.com/privacy-security/issues-fixed/ cve-icon cve-icon
History

Fri, 06 Nov 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Jetbrains
Jetbrains ktor
Vendors & Products Jetbrains
Jetbrains ktor

Fri, 06 Nov 2026 12:00:00 +0000

Type Values Removed Values Added
Title Missing Domain Attribute Validation Allows Cookie Injection in JetBrains Ktor

Fri, 06 Nov 2026 10:30:00 +0000

Type Values Removed Values Added
Description In JetBrains Ktor before 3.6.1 missing Domain attribute validation in client cookie storage allowed cookie injection
Weaknesses CWE-565
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: JetBrains

Published: 2026-11-06T10:28:05.274Z

Updated: 2026-11-06T10:28:05.274Z

Reserved: 2026-11-05T18:38:26.991Z

Link: CVE-2026-123319

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-06T11:17:11.457

Modified: 2026-11-06T11:17:11.457

Link: CVE-2026-123319

cve-icon Redhat

No data.