CVE Tools

Ktor

22 CVEs tracked. None of them is in CISA KEV.

This hub aggregates every CVE we track for Ktor, a product in the devtools ci space. Use it to gauge the current risk picture and drill into individual advisories.

Ktor CVEs per month

Oct 2024 to Sep 2026. Point at a month, or focus the strip and use the arrow keys.
Ktor CVEs per month
MonthCVEs
2024-101
2024-110
2024-120
2025-010
2025-020
2025-031
2025-040
2025-050
2025-060
2025-070
2025-080
2025-090
2025-100
2025-110
2025-120
2026-010
2026-020
2026-030
2026-040
2026-050
2026-060
2026-070
2026-081
2026-090

Severity

How the 22 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.

  • Critical15%
  • High523%
  • Medium1464%
  • Low29%

Latest CVEs

The 15 most recently published vulnerabilities affecting Ktor.

  1. CVE-2026-68762In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible5.9
  2. CVE-2025-29904In JetBrains Ktor before 3.1.1 an HTTP Request Smuggling was possible5.3
  3. CVE-2024-49580In JetBrains Ktor before 2.3.13 improper caching in HttpCache Plugin could lead to response information disclosure5.3
  4. CVE-2023-45613In JetBrains Ktor before 2.3.5 server certificates were not verified6.8
  5. CVE-2023-45612In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE8.6
  6. CVE-2023-34339In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message3.3
  7. CVE-2022-48476In JetBrains Ktor before 2.3.0 path traversal in the `resolveResource` method was possible 7.5
  8. CVE-2022-38180In JetBrains Ktor before 2.1.0 the wrong authentication provider could be selected in some cases5.3
  9. CVE-2022-38179JetBrains Ktor before 2.1.0 was vulnerable to the Reflect File Download attack4.7
  10. CVE-2022-29930SHA1 implementation in JetBrains Ktor Native 2.0.0 was returning the same value. The issue was fixed in Ktor version 2.0.1.8.7
  11. CVE-2022-29035In JetBrains Ktor Native before version 2.0.0 random values used for nonce generation weren't using SecureRandom implementations3.3
  12. CVE-2021-43203In JetBrains Ktor before 1.6.4, nonce verification during the OAuth2 authentication process is implemented improperly.7.5
  13. CVE-2021-25762In JetBrains Ktor before 1.4.3, HTTP Request Smuggling was possible.5.3
  14. CVE-2021-25763In JetBrains Ktor before 1.4.2, weak cipher suites were enabled by default.5.3
  15. CVE-2021-25761In JetBrains Ktor before 1.5.0, a birthday attack on SessionStorage key was possible.5.3

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