gh-123726: Document caveats of zipfile.Path around name sanitization #130537
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…ation Add a note to the `zipfile.Path` class documentation clarifying that it does not sanitize filenames. This emphasizes the caller's responsibility to validate or sanitize inputs, especially when handling untrusted ZIP archives, to prevent path traversal vulnerabilities. The note also references the `extract` and `extractall` methods for comparison and suggests using `os.path.abspath` and `os.path.commonpath` for safe filename resolution.
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All commit authors signed the Contributor License Agreement. |
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jaraco
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needs backport to 3.12
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Thanks @AffanShaikhsurab for the PR, and @jaraco for merging it 🌮🎉.. I'm working now to backport this PR to: 3.12, 3.13. |
miss-islington
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…ation (pythonGH-130537) Add a note to the `zipfile.Path` class documentation clarifying that it does not sanitize filenames. This emphasizes the caller's responsibility to validate or sanitize inputs, especially when handling untrusted ZIP archives, to prevent path traversal vulnerabilities. The note also references the `extract` and `extractall` methods for comparison and suggests using `os.path.abspath` and `os.path.commonpath` for safe filename resolution. (cherry picked from commit a3990df) Co-authored-by: Affan Shaikhsurab <[email protected]>
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GH-130986 is a backport of this pull request to the 3.13 branch. |
miss-islington
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…ation (pythonGH-130537) Add a note to the `zipfile.Path` class documentation clarifying that it does not sanitize filenames. This emphasizes the caller's responsibility to validate or sanitize inputs, especially when handling untrusted ZIP archives, to prevent path traversal vulnerabilities. The note also references the `extract` and `extractall` methods for comparison and suggests using `os.path.abspath` and `os.path.commonpath` for safe filename resolution. (cherry picked from commit a3990df) Co-authored-by: Affan Shaikhsurab <[email protected]>
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GH-130987 is a backport of this pull request to the 3.12 branch. |
jaraco
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I read this over a few times. I considered changing it to point out that it's mostly relevant when manifesting names in a file system, or making a reference to the open issues around providing a sanitizing extractor, but decided against that. This is a good, complete contribution. Thanks!
jaraco
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…zation (GH-130537) (#130986) gh-123726: Document caveats of zipfile.Path around name sanitization (GH-130537) Add a note to the `zipfile.Path` class documentation clarifying that it does not sanitize filenames. This emphasizes the caller's responsibility to validate or sanitize inputs, especially when handling untrusted ZIP archives, to prevent path traversal vulnerabilities. The note also references the `extract` and `extractall` methods for comparison and suggests using `os.path.abspath` and `os.path.commonpath` for safe filename resolution. (cherry picked from commit a3990df) Co-authored-by: Affan Shaikhsurab <[email protected]>
jaraco
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Mar 8, 2025
…zation (GH-130537) (#130987) gh-123726: Document caveats of zipfile.Path around name sanitization (GH-130537) Add a note to the `zipfile.Path` class documentation clarifying that it does not sanitize filenames. This emphasizes the caller's responsibility to validate or sanitize inputs, especially when handling untrusted ZIP archives, to prevent path traversal vulnerabilities. The note also references the `extract` and `extractall` methods for comparison and suggests using `os.path.abspath` and `os.path.commonpath` for safe filename resolution. (cherry picked from commit a3990df) Co-authored-by: Affan Shaikhsurab <[email protected]>
seehwan
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Apr 16, 2025
…ation (python#130537) Add a note to the `zipfile.Path` class documentation clarifying that it does not sanitize filenames. This emphasizes the caller's responsibility to validate or sanitize inputs, especially when handling untrusted ZIP archives, to prevent path traversal vulnerabilities. The note also references the `extract` and `extractall` methods for comparison and suggests using `os.path.abspath` and `os.path.commonpath` for safe filename resolution.
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Add a note to the
zipfile.Pathclass documentation clarifying that it does not sanitize filenames. This emphasizes the caller's responsibility to validate or sanitize inputs, especially when handling untrusted ZIP archives, to prevent path traversal vulnerabilities. The note also references theextractandextractallmethods for comparison and suggests usingos.path.abspathandos.path.commonpathfor safe filename resolution.This Pr solves the issue #123726
zipfile.Patharound name sanitization #123726📚 Documentation preview 📚: https://cpython-previews--130537.org.readthedocs.build/