The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the output validation applied to BaseCookie.output().
01
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2026-3644US | high7.5 | — | ||
The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowi… | ||||
02
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/python/cpython/commit/3974092b037f9a3b000fb15b48ea61ce3b25d330FIX
- https://github.com/python/cpython/commit/556aa098e738b127c714866f819b4abe2f7593d8FIX
- https://github.com/python/cpython/commit/57e88c1cf95e1481b94ae57abe1010469d47a6b4FIX
- https://github.com/python/cpython/commit/62ceb396fcbe69da1ded3702de586f4072b590ddFIX
- https://github.com/python/cpython/commit/d16ecc6c3626f0e2cc8f08c309c83934e8a979ddFIX
- https://github.com/python/cpython/commit/dae4b1a21f8df4570e30986affd61bbe4ade4cefFIX
- https://github.com/python/cpython/issues/145599REPORT
- https://github.com/python/cpython/pull/145600WEB
scry
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