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OpenAdvisories

Product · JetBrains

Ktor

14 known vulnerabilities.

Ktor at a glance

Last 12 months
4
Critical · all time
0
Exploited · all time
0
Public exploit · all time
1
New vulnerabilities per month · last 12 months
0 3 5 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 0 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 1 vulnerability September 2026: 0 vulnerabilities Sep October 2026: 0 vulnerabilities November 2026: 3 vulnerabilities
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14 results · Feed

  • Low 3.7

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

  • High 8.1

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

  • Medium 4.8

    In JetBrains Ktor before 3.6.1 hTTP request smuggling was possible in the CIO engine

  • Medium 5.9

    In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible

  • Medium 5.3

    In JetBrains Ktor before 3.1.1 an HTTP Request Smuggling was possible

  • Medium 5.3

    JetBrains Ktor information disclosure

    In JetBrains Ktor before 2.3.13 improper caching in HttpCache Plugin could lead to response information disclosure

  • Medium 6.8

    In JetBrains Ktor before 2.3.5 server certificates were not verified

  • High 8.6
    CVE-2023-45612 Public exploit

    In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE

  • Low 3.3

    In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message

  • High 7.5

    In JetBrains Ktor before 2.3.0 path traversal in the `resolveResource` method was possible

  • Medium 5.3

    JetBrain Ktor before 2.1.0 vulnerable to selection of wrong authentication provider

    In JetBrains Ktor before 2.1.0 the wrong authentication provider could be selected in some cases

  • Medium 4.7

    JetBrains Ktor before 2.1.0 was vulnerable to a Reflect File Download attack

    JetBrains Ktor before 2.1.0 was vulnerable to the Reflect File Download attack

  • High 8.7

    SHA1 implementation in JetBrains Ktor Native 2.0.0 was returning the same value. The issue was fixed in Ktor version 2.…

  • Low 3.3

    In JetBrains Ktor Native before version 2.0.0 random values used for nonce generation weren't using SecureRandom implem…