[3.12] gh-146333: Fix quadratic regex backtracking in configparser option parsing (GH-146399) (GH-148559) - #154081
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…ser option parsing (pythonGH-146399) (pythonGH-148559) Use negative lookahead in option regex to prevent backtracking, and to avoid changing logic outside the regexes (since people could use the regex directly). (cherry picked from commit 7e0a0be) Co-authored-by: Joshua Swanson <22283299+joshuaswanson@users.noreply.github.com> (cherry picked from commit a5969e8)
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needs backport to 3.10
Documentation build overview
543 files changed ·
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GH-155160 is a backport of this pull request to the 3.11 branch. |
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GH-155161 is a backport of this pull request to the 3.10 branch. |
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Use negative lookahead in option regex to prevent backtracking, and to avoid changing logic outside the regexes (since people could use the regex directly).
(cherry picked from commit 7e0a0be)
(cherry picked from commit a5969e8)
configparser.RawConfigParser.{OPTCRE,OPTCRE_NV}regexes vulnerable to quadratic backtracking #146333