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[stable32] Security: Unbounded limit parameter in user search can be abused for resource exhaustion#8579

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mejo- merged 1 commit into
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backport/8476/stable32
May 13, 2026
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[stable32] Security: Unbounded limit parameter in user search can be abused for resource exhaustion#8579
mejo- merged 1 commit into
stable32from
backport/8476/stable32

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@backportbot backportbot Bot commented May 13, 2026

Backport of PR #8476

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>
@mejo- mejo- merged commit f3977fd into stable32 May 13, 2026
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@mejo- mejo- deleted the backport/8476/stable32 branch May 13, 2026 13:21
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