GHSA-vf33-88pf-hwp3MediumCVSS 7.5
The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was...
🔗 CVE IDs covered (1)
📋 Description
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().
🔗 References (11)
- https://nvd.nist.gov/vuln/detail/CVE-2026-3644
- https://github.com/python/cpython/issues/145599
- https://github.com/python/cpython/pull/145600
- https://github.com/python/cpython/commit/57e88c1cf95e1481b94ae57abe1010469d47a6b4
- https://github.com/python/cpython/commit/62ceb396fcbe69da1ded3702de586f4072b590dd
- https://github.com/python/cpython/commit/d16ecc6c3626f0e2cc8f08c309c83934e8a979dd
- https://mail.python.org/archives/list/[email protected]/thread/H6CADMBCDRFGWCMOXWUIHFJNV43GABJ7
- https://github.com/python/cpython/commit/556aa098e738b127c714866f819b4abe2f7593d8
- https://github.com/python/cpython/commit/dae4b1a21f8df4570e30986affd61bbe4ade4cef
- https://github.com/python/cpython/commit/3974092b037f9a3b000fb15b48ea61ce3b25d330
- https://github.com/advisories/GHSA-vf33-88pf-hwp3