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CVE-2026-93546 is an integer-overflow vulnerability in Apache HTTP Server's mod_dav_fs module affecting versions through 2.4.68. An authenticated WebDAV client with write access can trigger the flaw by submitting PROPPATCH requests declaring excessive XML namespaces. Successful exploitation can crash worker processes and persistently corrupt a directory's WebDAV property database. Apache HTTP Server 2.4.69 fixes the vulnerability.
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No public exploit code observed for this vulnerability.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An integer overflow or wraparound vulnerability in Apache HTTP Server. The advisory lists versions before 2.4.69 as affected, without specifying a lower version bound, and recommends upgrading to 2.4.69 or later.
Unknown
A mod_dav_fs namespace-overflow flaw that can cause denial of service and persistent WebDAV property-database corruption.
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.