CVE-2026-3644 | 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().
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().
- 🔗 mail.python.org/archives/list/[email protected]…
- 🔗 github.com/python/cpython/commit/57e88c1cf95e1481b94…
- 🔗 github.com/python/cpython/issues/145599
- 🔗 github.com/python/cpython/pull/145600
- 🔗 github.com/python/cpython/commit/62ceb396fcbe69da1de…
- 🔗 github.com/python/cpython/commit/d16ecc6c3626f0e2cc8…
- 🔗 github.com/python/cpython/commit/556aa098e738b127c71…
- 🔗 github.com/python/cpython/commit/dae4b1a21f8df4570e3…
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📊 Historien-Charts — Criticals-Trend · Vendors · EPSS-Verteilung
| Tier | 2026-08-29 | 2026-09-11 |
|---|---|---|
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| ≥50 % | 4 | 0 |
| ≥10 % | 3 | 0 |
| <10 % | 304 | 300 |
CVE-2026-3644 | 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().
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. Additional