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Tag

Notes tagged “sessions”

Every note filed under sessions, newest first.

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2026

  1. One Defect, Three Surfaces

    CORS allowlists, OAuth redirect URIs and open redirects have separate vulnerability literatures and the same bug — a structured identifier tested with a string operation. The fix is one sentence, and a standards body finally wrote it down.

  2. The Credential That Predates the Origin

    Cookies do not obey the same-origin policy — they never have. Thirty years of attributes, flags and name prefixes are one long retrofit, and knowing which parts actually hold is most of session security.