Another worst case quadratic complexity in HTMLParser #153030

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1. picnixz

   added

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   on Jul 4, 2026
2. serhiy-storchaka

   added 4 commits that reference this issue on Jul 4, 2026

   gh-153030: Fix quadratic complexity in incremental parsing in HTMLPar…

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   [3.13] gh-153030: Fix quadratic complexity in incremental parsing in …

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   [3.15] gh-153030: Fix quadratic complexity in incremental parsing in …

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3. StanFromIreland

   added

   type-securityA security issueA security issue

   3.11only security fixesonly security fixes

   3.10 (EOL)end of lifeend of life

   3.12only security fixesonly security fixes

   3.13only security fixesonly security fixes

   3.14bugs and security fixesbugs and security fixes

   3.16new features, bugs and security fixesnew features, bugs and security fixes

   and removed

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on Jul 5, 2026
4. hrnciar

   added a commit that references this issue on Jul 10, 2026

   0490:: pythongh-153030: Fix quadratic complexity in incremental parsi…

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6. pablogsal

   added 2 commits that reference this issue on Aug 10, 2026

   [3.11] gh-153030: Fix quadratic complexity in incremental parsing in …

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   [3.10] gh-153030: Fix quadratic complexity in incremental parsing in …

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7. serhiy-storchaka

   closed this as completedon Aug 11, 2026
8. arnout

   added a commit that references this issue on Aug 14, 2026

   package/python3: security bump to v3.12.14

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   80251a0
9. bmwiedemann

   added a commit that references this issue on Aug 17, 2026

   Update python313 to version 3.13.14 / rev 44 via SR 1371267

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   b2e2336
10. hackpanin commented on Sep 5, 2026

    

    hackpanin

    on Sep 5, 2026 · Hidden as low-quality

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11. mcepl

    added 4 commits that reference this issue on Sep 18, 2026

    [CVE-2026-15308] Fix quadratic complexity in incremental parsing in H…

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    [CVE-2026-15308] Fix quadratic complexity in incremental parsing in H…

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    [CVE-2026-15308] Fix quadratic complexity in incremental parsing in H…

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12. hroncok

    added 2 commits that reference this issue on Sep 23, 2026

    0490:: pythongh-153030: Fix quadratic complexity in incremental parsi…

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    0490: pythongh-153030: Fix quadratic complexity in incremental parsin…

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13. mcepl

    added 3 commits that reference this issue on Oct 1, 2026

    [CVE-2026-15308] Fix quadratic complexity in incremental parsing in H…

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    [CVE-2026-15308] Fix quadratic complexity in incremental parsing in H…

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    [CVE-2026-15308] Fix quadratic complexity in incremental parsing in H…

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