CVE-2026-54399: Apache HttpComponents Core HTTP/1 header parsing can cause memory-exhaustion denial of service
(updated )
Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core (5.4.2 and earlier, 5.5-beta1 and earlier) allows a remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive header length
References
- github.com/advisories/GHSA-hf6x-8p5f-cgmf
- github.com/apache/httpcomponents-core/commit/d96a00fec9b2e19f8005e35681df5f6cd6e21a9e
- github.com/apache/httpcomponents-core/commit/fdc53a32fe0fccf098cc67e71cd125e447c759ed
- lists.apache.org/thread/zmxh1pl2zohov5ntdh4lt85gfrlchgpy
- nvd.nist.gov/vuln/detail/CVE-2026-54399
Code Behaviors & Features
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