Abusing the federated share endpoint, an attacker can write arbitrary rows into the oc_share_external database table. These rows persist indefinitely — there is no automatic cleanup mechanism. Three distinct denial-of-service conditions fol…

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No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

Abusing the federated share endpoint, an attacker can write arbitrary rows into the oc_share_external database table. These rows persist indefinitely — there is no automatic cleanup mechanism. Three distinct denial-of-service conditions follow from this write primitive, all triggered from the same unauthenticated source and all self-renewing on a 24-hour cycle for as long as the injected rows remain in the database.

Source published

27 Oct 2026 16:15:34 UTC

Source modified

27 Oct 2026 16:15:34 UTC

Observed here

27 Oct 2026 17:43:43 UTC

Source terms

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CVSS 3.0 · 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H