Is CVE-2026-86734 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-86734?

CVE-2026-86734 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-86734

Description

Snipe-IT before 8.7.1 fails to validate the length of the note field in the POST /account/accept/{acceptance} endpoint, allowing authenticated users to submit unbounded input that reaches synchronous CommonMark rendering. Attackers can submit large note values to exhaust PHP worker CPU and cause denial of service through resource exhaustion in the markdown parsing pipeline.