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crowdsec: whitelist Matrix client feature-probe 404s to stop http-probing false positives

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aykhans committed 2026-07-31 11:37:26 +00:00
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commit e577bf7304
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crowdsec/parsers/s02-enrich/whitelist-matrix-client-probes.yaml
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name: aykhans/whitelist-matrix-client-probes
description: "Prevent http-probing false positives from Matrix client feature-detection 404s"
whitelist:
reason: "Matrix client MSC feature-detection and media preview requests return 404 by design (benign)"
expression:
- evt.Meta.service == 'http' and evt.Meta.http_status == '404' and evt.Meta.http_path startsWith '/_matrix/client/unstable/org.matrix.msc'
- evt.Meta.service == 'http' and evt.Meta.http_status == '404' and evt.Meta.http_path startsWith '/_matrix/client/v1/media/preview_url'
- evt.Meta.service == 'http' and evt.Meta.http_status == '404' and evt.Meta.http_path startsWith '/_matrix/client/' and evt.Meta.http_path contains '/rooms/'