AIKIDO-2026-11044
httpd is vulnerable to Resource Exhaustion
75
High Risk
This Affects:
httpdTL;DR
Apache httpd's bundled HTTP/2 implementation can merge split Cookie header fields without counting each crumb against the configured request-field limit. A client can combine HPACK indexed cookie fragments with a stalled response stream to keep large header allocations live. Affected servers can suffer remote memory exhaustion and availability loss through HTTP/2 requests. No Apache httpd 2.4.x release containing the fix was available in the checked evidence.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and HTTP/2 is enabled.
Background info
httpd is vulnerable to Resource Exhaustion in versions 2.4.17 - 2.4.67.
How to fix this
Disable HTTP/2 by setting Protocols http/1.1 until a patched Apache httpd release is available.
Are You Affected?
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SOC 2Compliant
ISO 27001Compliant