Advisory [CVE-2026-49975] Apache HTTP Server: mod_http2 denial of service
This security Apache Software Foundation advisory covers CVE-2026-49975 affecting Apache HTTP Server.
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Summary
Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests.
This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.
- Apache HTTP Server 2.4.17 through 2.4.67
Official advisory · medium-confidence parse· fetched 4 months ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 4 months ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 4 months ago·verify at source
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