[stable33] Security: Unbounded limit parameter in user search can be abused for resource exhaustion#8580
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The `index(string $filter = '', int $limit = 5)` method accepts client-controlled `limit` and passes it directly to collaborator search. Without an upper bound, an attacker can request very large limits, causing expensive directory lookups and increased response size. Signed-off-by: tomaioo <203048277+tomaioo@users.noreply.github.com>
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May 13, 2026
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Backport of PR #8476