HIGH
CVE-2026-72688
CVSS
7.5
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.
Weakness (CWE)
CWE-306
Missing Authentication
EPSS Score
0.5%
Probability of exploitation in next 30 days
41.9th percentile
References
Base CVE data derived from NVD (public domain). Enrichment by
dbcve.org
(CC-BY-4.0). Fetched via API.