CVE-2025-15282

Description

User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype.

Affected Platforms

Weakness Type

CWE-93

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…