CVE-2026-72691 — OpenSignLabs opensignserver - Authentication Bypass
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 a…
Published: 2026-08-10 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7