Is CVE-2026-72688 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-72688?

CVE-2026-72688 has a CVSS v3 severity of HIGH (7.5).

Back

CVE-2026-72688

Description

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.