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PHP session.upload_progress heap UAF (CVE-2026-109618 / -109619)

FINAL STATUS (2026-10-21): the CVE-2026-109618 / CVE-2026-109619 memory-corruption class shipped patches 2026-10-21. On the patch, that class is closed: the cached-pointer chain dies at the addref and the serialize-state path is a memory-safety bug, not code execution. Two session-handling flaws survive on…
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Security & Privacy2026

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Oct 21, 2026PHP session.upload_progress heap UAF (CVE-2026-109618 / -109619) by rfarley0418762

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