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CVE-2026-63078 is a patched zero-day vulnerability in Apache Traffic Server involving HTTP desynchronization. Available reporting indicates the issue was exposed through a crafted request sequence that triggered inconsistent request parsing and handling, and it has been associated with a desync trigger involving unusual method and header combinations. The flaw appears to fall within the request smuggling/desynchronization class, where malformed or ambiguously interpreted requests can cause a front-end and back-end component, or different parsing paths within the server, to disagree about request boundaries or semantics. Public technical detail about the exact vulnerable code path, affected versions, and fixed release mapping is currently not available.
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No public exploit code observed for this vulnerability.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A desynchronization zero-day in Apache Traffic Server discovered during human-guided research into HTTP desynchronization techniques.
A patched zero-day desynchronization vulnerability in Apache Traffic Server discovered through HTTP desync research.
A patched zero-day desynchronization vulnerability in Apache Traffic Server discovered during HTTP desync research, triggered via a DELETE/TRACE-based request pattern that caused inline headers to appear in responses.
A patched zero-day desynchronization vulnerability in Apache Traffic Server discovered through HTTP desync research, triggered via malformed request handling that produced inline headers and desync behavior.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.