๐Ÿ” CVE Alert

CVE-2026-123317

HIGH 8.1
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th

In JetBrains Ktor before 3.6.1 session forgery was possible via tampered encrypted session cookies

CWE CWE-354
Vendor jetbrains
Product ktor
Published Nov 6, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Affected Versions

JetBrains / Ktor
0 < 3.6.1

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
jetbrains.com: https://www.jetbrains.com/privacy-security/issues-fixed/