fix(github): sanitize PR review and discussion bodies on read paths - #3039
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SashaMIT wants to merge 1 commit into
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fix(github): sanitize PR review and discussion bodies on read paths#3039SashaMIT wants to merge 1 commit into
SashaMIT wants to merge 1 commit into
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Issue/PR title and body reads already run through sanitize.Sanitize. PR review bodies, review-thread comments, and Discussion title/body/comments still returned raw attacker-controlled text into the model context. Apply the same sanitize control on those sibling read paths. Clean content is unchanged; lockdown filtering is untouched.
This was referenced Aug 8, 2026
Micfinch
approved these changes
Aug 9, 2026
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Problem
Issue and PR title/body reads already run through sanitize.Sanitize (invisible Unicode tags, BiDi overrides, HTML, code-fence metadata) before content reaches the model. Several sibling user-authored read paths still returned raw text:
A hostile review or Discussion post could therefore carry hidden prompt-injection payloads into the context window, bypassing the baseline control its sibling issue/PR paths apply. Related prior: #3035 (issue comments + sub-issues).
Fix
Apply the same sanitize.Sanitize on those converters and Discussion response builders. No behavior change for clean content; lockdown-mode filtering is untouched and orthogonal.
Testing
go test ./pkg/github/ ./pkg/sanitize/ pass.
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