gh-99418: Make urllib.parse.urlparse enforce that a scheme must begin with an alphabetical ASCII character. #99421
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…on't begin with an alphabetical ASCII character.
…on't begin with an alphabetical ASCII character.
gpshead
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Nov 13, 2022
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Thanks @kenballus for the PR, and @gpshead for merging it 🌮🎉.. I'm working now to backport this PR to: 3.11. |
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GH-99446 is a backport of this pull request to the 3.11 branch. |
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Nov 13, 2022
… begin with an alphabetical ASCII character. (pythonGH-99421) Prevent urllib.parse.urlparse from accepting schemes that don't begin with an alphabetical ASCII character. RFC 3986 defines a scheme like this: `scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )` RFC 2234 defines an ALPHA like this: `ALPHA = %x41-5A / %x61-7A` The WHATWG URL spec defines a scheme like this: `"A URL-scheme string must be one ASCII alpha, followed by zero or more of ASCII alphanumeric, U+002B (+), U+002D (-), and U+002E (.)."` (cherry picked from commit 439b9cf) Co-authored-by: Ben Kallus <[email protected]>
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Nov 13, 2022
… with an alphabetical ASCII character. (GH-99421) Prevent urllib.parse.urlparse from accepting schemes that don't begin with an alphabetical ASCII character. RFC 3986 defines a scheme like this: `scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )` RFC 2234 defines an ALPHA like this: `ALPHA = %x41-5A / %x61-7A` The WHATWG URL spec defines a scheme like this: `"A URL-scheme string must be one ASCII alpha, followed by zero or more of ASCII alphanumeric, U+002B (+), U+002D (-), and U+002E (.)."` (cherry picked from commit 439b9cf) Co-authored-by: Ben Kallus <[email protected]>
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CVE-2023-24329 was assigned to this issue. |
vstinner
changed the title
That this PR does not fix that CVE. The CVE is inaccurate. See #102153. |
gpshead
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This was referenced Oct 11, 2023
gentoo-bot
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May 21, 2024
… begin with an alphabetical ASCII character. (pythonGH-99421) Prevent urllib.parse.urlparse from accepting schemes that don't begin with an alphabetical ASCII character. RFC 3986 defines a scheme like this: `scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )` RFC 2234 defines an ALPHA like this: `ALPHA = %x41-5A / %x61-7A` The WHATWG URL spec defines a scheme like this: `"A URL-scheme string must be one ASCII alpha, followed by zero or more of ASCII alphanumeric, U+002B (+), U+002D (-), and U+002E (.)."` (cherry picked from commit 439b9cf) Co-authored-by: Ben Kallus <[email protected]>
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May 21, 2024
… begin with an alphabetical ASCII character. (pythonGH-99421) Prevent urllib.parse.urlparse from accepting schemes that don't begin with an alphabetical ASCII character. RFC 3986 defines a scheme like this: `scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )` RFC 2234 defines an ALPHA like this: `ALPHA = %x41-5A / %x61-7A` The WHATWG URL spec defines a scheme like this: `"A URL-scheme string must be one ASCII alpha, followed by zero or more of ASCII alphanumeric, U+002B (+), U+002D (-), and U+002E (.)."` (cherry picked from commit 439b9cf) Co-authored-by: Ben Kallus <[email protected]>
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Sep 19, 2024
… begin with an alphabetical ASCII character. (pythonGH-99421) Prevent urllib.parse.urlparse from accepting schemes that don't begin with an alphabetical ASCII character. RFC 3986 defines a scheme like this: `scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )` RFC 2234 defines an ALPHA like this: `ALPHA = %x41-5A / %x61-7A` The WHATWG URL spec defines a scheme like this: `"A URL-scheme string must be one ASCII alpha, followed by zero or more of ASCII alphanumeric, U+002B (+), U+002D (-), and U+002E (.)."` (cherry picked from commit 439b9cf) Co-authored-by: Ben Kallus <[email protected]>
gentoo-bot
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Sep 19, 2024
… begin with an alphabetical ASCII character. (pythonGH-99421) Prevent urllib.parse.urlparse from accepting schemes that don't begin with an alphabetical ASCII character. RFC 3986 defines a scheme like this: `scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )` RFC 2234 defines an ALPHA like this: `ALPHA = %x41-5A / %x61-7A` The WHATWG URL spec defines a scheme like this: `"A URL-scheme string must be one ASCII alpha, followed by zero or more of ASCII alphanumeric, U+002B (+), U+002D (-), and U+002E (.)."` (cherry picked from commit 439b9cf) Co-authored-by: Ben Kallus <[email protected]>
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urllib.parse.urlparse does not enforce that a scheme must begin with a character from
[A-Za-z]. This patch adds a check to enforce that rule.