[dependabot]

Bumps rack from 2.2.23 to 2.2.25.

Changelog

Sourced from rack's changelog.

[2.2.25] - 2026-10-30

Security

• GHSA-5v64-555j-wjxm Multipart parser retains parsed data in its scan buffer, allowing denial of service via memory exhaustion.
• GHSA-wvg4-6p58-3gh3 Rack::Static header rules were matched against an unnormalized path, allowing dot segments to bypass them.
• GHSA-p8x9-v4hv-2w4g Multipart requests with more than one boundary parameter were accepted when the first value was empty or began with a quote, semicolon, or comma, bypassing the guard added for CVE-2026-26961.

Fixed

• Multipart parser: scan boundary lines with a literal newline search instead of a backtracking regexp, which allocated tens of megabytes per scan for long lines and made the scan buffer fix above ineffective on this series.

[2.2.24] - 2026-08-13

Security

• CVE-2026-26962 Improper unfolding of folded multipart headers preserves CRLF in parsed parameter values.

Commits

• 40904de Bump patch version.
• c435449 Update changelog.
• 71b39f0 Scan multipart boundary lines without regexp backtracking.
• c9b4698 Remove parsed bytes from the multipart buffer while reading parts.
• d5e928b Reject multipart content types with a boundary parameter before the parsed one.
• e88097c Normalize static header rule paths before matching.
• a0bf932 Bump patch version.
• 99f5b44 Backport OBS unfolding for multipart requests to 2-2-stable (#2487)
• See full diff in compare view

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