What’s Vulnerable › Vulnerabilities

CVE-2025-29904

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-03-12 · updated 2026-06-17
• Weakness: CWE-444

Description

In JetBrains Ktor before 3.1.1 an HTTP Request Smuggling was possible

Affected products

• JetBrains Ktor: before 3.1.1 — fixed in 3.1.1

How to fix

Upgrade to a fixed version: JetBrains Ktor 3.1.1. Check the vendor advisory for mitigations.

References

• https://www.jetbrains.com/privacy-security/issues-fixed/

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