Known Vulnerabilities for Ktor by JetBrains

Listed below are 10 of the newest known vulnerabilities associated with "Ktor" by "JetBrains".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-123319 json In JetBrains Ktor before 3.6.1 missing Domain attribute validation in client cookie storage allowed cookie injection Not Provided 2026-11-06 2026-11-06
CVE-2026-123318 json In JetBrains Ktor before 3.6.1 hTTP request smuggling was possible in the CIO engine Not Provided 2026-11-06 2026-11-06
CVE-2026-123317 json In JetBrains Ktor before 3.6.1 session forgery was possible via tampered encrypted session cookies Not Provided 2026-11-06 2026-11-07
CVE-2026-108714 json MCP Kotlin SDK through 0.15.0 contains an uncontrolled memory allocation vulnerability that allows remote clients to exhaust ... Not Provided 2026-10-11 2026-10-14
CVE-2026-68762 json In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible Not Provided 2026-08-17 2026-08-17
CVE-2023-45613 json In JetBrains Ktor before 2.3.5 server certificates were not verified 9.1 - CRITICAL 2023-10-09 2023-10-12
CVE-2023-45612 json In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE 9.8 - CRITICAL 2023-10-09 2023-10-12
CVE-2023-34339 json In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message 3.3 - LOW 2023-06-01 2023-06-08
CVE-2022-48476 json In JetBrains Ktor before 2.3.0 path traversal in the `resolveResource` method was possible 7.5 - HIGH 2023-04-24 2023-05-02
CVE-2022-38180 json In JetBrains Ktor before 2.1.0 the wrong authentication provider could be selected in some cases 6.5 - MEDIUM 2022-08-12 2022-08-16
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationJetbrainsKtor1.5.0
ApplicationJetbrainsKtor1.4.3
ApplicationJetbrainsKtor1.4.2
ApplicationJetbrainsKtor1.4.1
ApplicationJetbrainsKtor1.4.0
ApplicationJetbrainsKtor1.3.2.2
ApplicationJetbrainsKtor1.3.2.1
ApplicationJetbrainsKtor1.3.2
ApplicationJetbrainsKtor1.3.1
ApplicationJetbrainsKtor1.3.0
ApplicationJetbrainsKtor1.3.0
ApplicationJetbrainsKtor1.3.0
ApplicationJetbrainsKtor1.2.6
ApplicationJetbrainsKtor1.2.5
ApplicationJetbrainsKtor1.2.4
ApplicationJetbrainsKtor1.2.3
ApplicationJetbrainsKtor1.2.3
ApplicationJetbrainsKtor1.2.2
ApplicationJetbrainsKtor1.2.1
ApplicationJetbrainsKtor1.2.0
Results limited to 20 most recent known configurations

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