CVE-2024-49580

JetBrains Ktor information disclosure

5.3 MediumFix available

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

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.35%Up 0.3 points since Oct 18, 2024

What each source reports

CVE List Score used 5.3

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

Record: CVE-2024-49580
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-524
Updated: 2026-11-02

EUVDEUVD-2024-2998 5.3

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

Record: EUVD-2024-2998
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-8qv4-773j-c979 5.3

JetBrains Ktor information disclosure

Improper caching in JetBrains Ktor before 3.0.0 in the HttpCache Plugin could lead to response information disclosure.

Record: GHSA-8qv4-773j-c979
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-524
Updated: 2026-11-02

NVD 5.3

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

Record: CVE-2024-49580
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-524
Updated: 2026-11-02

OSV 5.3

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

Record: CVE-2024-49580
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-524
Updated: 2026-11-02

OSVGHSA-8qv4-773j-c979 5.3

JetBrains Ktor information disclosure

Improper caching in JetBrains Ktor before 3.0.0 in the HttpCache Plugin could lead to response information disclosure.

Record: GHSA-8qv4-773j-c979
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-524
Updated: 2026-11-02

Affected products

jetbrains ktor

Affected packages

Affected packages
Package	Affected	Fixed
`io.ktor:ktor-client-core-jvm` Maven	before 2.3.13	2.3.13
`io.ktor:ktor-client-core-jvm` Maven	before 2.3.13, plus listed versions 1.0.01.0.0-rc1.0.11.1.01.1.1 Show 45 moreShow less 1.1.21.1.31.1.41.1.51.2.01.2.0-rc1.2.0-rc21.2.11.2.21.2.31.2.3-rc1.2.41.2.51.2.61.3.01.3.0-rc1.3.0-rc21.3.11.3.2-1.4.0-rc1.4.01.4.11.4.21.4.31.5.01.5.11.5.21.5.31.5.41.6.01.6.11.6.21.6.31.6.41.6.51.6.61.6.71.6.82.0.02.0.0-beta-12.0.0-rc-12.0.12.0.22.0.32.1.02.1.1	2.3.13

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-49580 is a medium vulnerability (CVSS 5.3) in Jetbrains Ktor, published October 17, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 29th percentile. Fixed in io.ktor:ktor-client-core-jvm 2.3.13.

References

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Left out here: 20 versions. The JSON record has them.