Is CVE-2026-72691 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-72691?

CVE-2026-72691 has a CVSS v3 severity of HIGH (7.5).

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CVE-2026-72691

Description

An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTER_KEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. The function skips its isAuthenticated check whenever any docId parameter is supplied, even one corresponding to no real document, allowing the authentication gate to be bypassed by supplying an arbitrary string as docId.