What’s Vulnerable › Vulnerabilities

CVE-2023-34339

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-01 · updated 2026-06-17
• Weakness: CWE-209

Description

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

Affected products

• JetBrains Ktor: before 2.3.1 — fixed in 2.3.1

How to fix

Upgrade to a fixed version: JetBrains Ktor 2.3.1. Check the vendor advisory for mitigations.

References

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

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