CVE-2026-72688 — OpenSignLabs opensignserver - Missing Authentication for Critical Function
A missing authentication vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read arbitrary stored documents via the fileupl…
Published: 2026-08-10 · CVSS: 7.5 · CVSS 3.1
A missing authentication vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read arbitrary stored documents via the fileupload Parse cloud function. The function mints MASTER_KEY-signed file access tokens for any caller-supplied URL without performing any session check, defeating the only access control protecting stored contract files.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7