CVE-2026-54399: org.apache.httpcomponents.core5:httpcore5:jar:5.4.2:test

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Summary

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 an remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive header length

Sonatype's research suggests that this CVE's details differ from those defined at NVD. See https://guide.sonatype.com/vulnerability/CVE-2026-54399 for details

CVE: CVE-2026-54399
CWE: CWE-400

References

• https://guide.sonatype.com/vulnerability/CVE-2026-54399?component-type=maven&component-name=org.apache.httpcomponents.core5%2Fhttpcore5&utm_source=ossindex-client&utm_medium=integration&utm_content=1.8.1
• http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2026-54399
• https://lists.apache.org/thread/zmxh1pl2zohov5ntdh4lt85gfrlchgpy
• http://www.openwall.com/lists/oss-security/2026/07/01/4