What’s Vulnerable › Vulnerabilities

CVE-2024-23722

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-03-26 · updated 2026-06-17
• Weakness: CWE-476

Description

In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP payload with the content type of x-www-form-urlencoded. It crashes and does not restart. This could result in logs not being delivered properly.

Affected products

• FluentBit Fluent Bit: from 2.1.8 before 2.2.2 — fixed in 2.2.2

How to fix

Upgrade to a fixed version: FluentBit Fluent Bit 2.2.2. Check the vendor advisory for mitigations.

References

• https://github.com/fluent/fluent-bit/compare/v2.2.1...v2.2.2
• https://medium.com/%40adurands82/fluent-bit-dos-vulnerability-cve-2024-23722-4e3e74af9d00
• https://github.com/fluent/fluent-bit/compare/v2.2.1...v2.2.2
• https://medium.com/%40adurands82/fluent-bit-dos-vulnerability-cve-2024-23722-4e3e74af9d00

Get alerted when CVE-2024-23722 or the next vulnerability affects your stack