What happened
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted content This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Affected versions
Apache HTTP Server: 2.4.0 through 2.4.67 (semver) Fixed: See vendor advisory.
Why it matters
This source correlation may provide earlier visibility while structured CVE metadata is still being updated.
Detection & mitigation
- Review the original advisory and validate affected versions.
- Apply vendor-provided updates or mitigations when available.
Public PoC references
RepositoryAuthorFirst seenReference
SploitusHeap overflow in Apache HTTP Server mod_xml2enc causing worker crash and DoS in 2.4.0-2.4.67.erberkan2026-09-13T18:55:41Verifiederberkan/CVE-2026-42536-PoCHeap overflow in Apache HTTP Server mod_xml2enc causing worker crash and DoS in 2.4.0-2.4.67.erberkan2026-09-13T18:55:41VerifiedSource timeline
Discovered through SploitusView source ↗
CVE record published by NVDView source ↗
Record history
Record created from the first normalized source observation.
Metadata and source references refreshed.