In JetBrains Ktor before 2.3.13 improper caching in HttpCache Plugin could lead to response information disclosure
Priority LOW 30CWE-524Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
In JetBrains Ktor before 2.3.13 improper caching in HttpCache Plugin could lead to response information disclosure
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00352 29th percentileScored 2026-11-07
Fix Fixed Ktor (JetBrains): 2.3.13io.ktor:ktor-client-core-jvm (Maven): 2.3.13
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| JetBrains | Ktor | before 2.3.13 | 2.3.13 | Patch available | CNA |
| — | io.ktor:ktor-client-core-jvm (Maven) | before 2.3.13 | 2.3.13 | Patch available | GHSA-8qv4-773j-c979 |
- Ktor VendorJetBrains Affected before 2.3.13 Fixed in 2.3.13 Patch available CNA
- io.ktor:ktor-client-core-jvm (Maven) Vendor— Affected before 2.3.13 Fixed in 2.3.13 Patch available GHSA-8qv4-773j-c979
Remediation
- Fix · CNA Ktor (JetBrains) Fixed in 2.3.13
- Fix · GHSA-8qv4-773j-c979 io.ktor:ktor-client-core-jvm (Maven) Fixed in 2.3.13 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-49580
- 2026-10-03 Alias added: GHSA-8qv4-773j-c979
References
Advisory 2
Other 8
- https://github.com/ktorio/ktor/pull/4337
- https://github.com/ktorio/ktor/pull/4368
- https://github.com/ktorio/ktor/commit/0665736fc35c8ab5525241e975f36819b67f9d3e
- https://github.com/ktorio/ktor/commit/d6c3a51df169c163e8f0b9ce77bbe543c70116ac
- https://github.com/ktorio/ktor
- https://github.com/ktorio/ktor/releases/tag/2.3.13
- https://www.jetbrains.com/privacy-security/issues-fixed
- https://youtrack.jetbrains.com/issue/KTOR-7483
More JetBrains Ktor vulnerabilities
- TI-2023-24413 In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE CVSS 3.1CRITICAL 9.8
- TI-2019-09527 JetBrains Ktor framework before 1.2.0-rc does not sanitize the username provided by the… CVSS 3.1CRITICAL 9.8
- TI-2023-24414 In JetBrains Ktor before 2.3.5 server certificates were not verified CVSS 3.1CRITICAL 9.1
- TI-2022-24056 In JetBrains Ktor before 2.3.0 path traversal in the `resolveResource` method was possible CVSS 3.1HIGH 7.5
- TI-2022-12277 SHA1 implementation in JetBrains Ktor Native 2.0.0 was returning the same value. CVSS 3.1HIGH 8.7
- TI-2019-07426 JetBrains Ktor framework (created using the Kotlin IDE template) versions before 1.1.0… CVSS 3.0HIGH 8.1
Sources
- CVE-2024-49580 · CVE Program
- CVE-2024-49580 · NVD
- FIRST EPSS
- GHSA-8qv4-773j-c979 · GitHub Advisory Database · CC BY 4.0
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