[3.12] gh-146333: Fix quadratic regex backtracking in configparser option parsing (GH-146399) (GH-148559)#154081
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[3.12] gh-146333: Fix quadratic regex backtracking in configparser option parsing (GH-146399) (GH-148559)#154081encukou wants to merge 1 commit into
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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)
encukou
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needs backport to 3.10
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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