Vulnerability Description
User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype.
Related Weaknesses (CWE)
References
- https://github.com/python/cpython/commit/05356b1cc153108aaf27f3b72ce438af4aa218c
- https://github.com/python/cpython/commit/34d76b00dabde81a793bd06dd8ecb057838c4b3
- https://github.com/python/cpython/commit/3f396ca9d7bbe2a50ea6b8c9b27c0082884d9f8
- https://github.com/python/cpython/commit/4ed11d3cd288e6b90196a15c5a825a45d318fe4
- https://github.com/python/cpython/commit/a35ca3be5842505dab74dc0b90b89cde0405017
- https://github.com/python/cpython/commit/f25509e78e8be6ea73c811ac2b8c928c28841b9
- https://github.com/python/cpython/issues/143925
- https://github.com/python/cpython/pull/143926
- https://mail.python.org/archives/list/[email protected]/thread/X66HL7
FAQ
What is CVE-2025-15282?
CVE-2025-15282 is a documented vulnerability. User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype.
How severe is CVE-2025-15282?
CVSS scoring is not yet available for CVE-2025-15282. Check NVD for updates.
Is there a patch for CVE-2025-15282?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.