digest: escape control codes too

Since the username is decoded when used and control codes are accepted
in HTTP usernames in general, the username encoding for the Digest auth
needs to percent encode such bytes.

Verified by test 3221

Reported-by: Trail of Bits
Closes #21915
This commit is contained in:
Daniel Stenberg 2026-06-08 23:21:55 +02:00
parent 04afd16076
commit a2b943b115
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3 changed files with 81 additions and 1 deletions

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