CVE-2026-72691
An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTE
CVSS
7.5
High
EPSS
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KEV
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Exploit Today
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0-100
Published: Aug 10, 2026 · Last modified: Aug 10, 2026 · CWE-288
Not enough EPSS history yet.
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.
CVECVSSEPSSKEVRExploitTitleMod.
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