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CVE-2026-0672

When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:eade66e47438a9d6bdc7a1dd7ca54f5c7aa9bc60ff466f903c4abb2774dfa863
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","modules":["http.cookies"],"product":"CPython","repo":"https://github.com/python/cpython","vendor":"Python Software Foundation","versions":[{"lessThan":"3.10.20","status":"affected","version":"0","versionType":"python"},{"lessThan":"3.11.15","status":"affected","version":"3.11.0","versionType":"python"},{"lessThan":"3.12.13","status":"affected","version":"3.12.0","versionType":"python"},{"lessThan":"3.13.12","status":"affected","version":"3.13.0","versionType":"python"},{"lessThan":"3.14.3","status":"affected","version":"3.14.0","versionType":"python"},{"lessThan"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-93","description":"CWE-93","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/problemTypes/0/descriptions/0

Source references

9 source assertions
{"tags":["patch"],"url":"https://github.com/python/cpython/commit/62700107418eb2cca3fc88da036a243ea975f172"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/references/5
{"tags":["patch"],"url":"https://github.com/python/cpython/commit/712452e6f1d4b9f7f8c4c92ebfcaac1705faa440"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/references/4
{"tags":["patch"],"url":"https://github.com/python/cpython/commit/7852d72b653fea0199acf5fc2a84f6f8b84eba8d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/references/6
{"tags":["patch"],"url":"https://github.com/python/cpython/commit/918387e4912d12ffc166c8f2a38df92b6ec756ca"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/references/7
{"tags":["patch"],"url":"https://github.com/python/cpython/commit/95746b3a13a985787ef53b977129041971ed7f70"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/references/3
{"tags":["patch"],"url":"https://github.com/python/cpython/commit/b1869ff648bbee0717221d09e6deff46617f3e85"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/references/8
{"tags":["issue-tracking"],"url":"https://github.com/python/cpython/issues/143919"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/python/cpython/pull/143920"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/references/0
{"tags":["vendor-advisory"],"url":"https://mail.python.org/archives/list/security-announce@python.org/thread/6VFLQQEIX673KXKFUZXCUNE5AZOGZ45M/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4fd22bf0c5e83688009f091524283a02132257a2cc1ced1c317e893ace9482eb · sha256:68acabd7a3f9d4a3… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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