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CVE-2026-56449 is an out-of-bounds write vulnerability in Apache HTTP Server's mod_proxy_html module affecting versions 2.4.0 through 2.4.68. Processing a crafted HTTP response body from an upstream server can trigger memory corruption and a crash in the module's dump_content functionality. Apache HTTP Server 2.4.69 contains the fix.
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No public exploit code observed for this vulnerability.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An out-of-bounds write vulnerability in Apache HTTP Server. The advisory identifies version 2.4.68 as affected and recommends upgrading to 2.4.69 or later.
Unknown
An out-of-bounds write vulnerability in Apache mod_proxy_html that requires a malicious or compromised upstream response.
Listed as an Apache HTTP Server vulnerability covered by the Nessus plugin. Flaw-specific technical details are not provided.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.