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{"timestamp":"2026-08-10T15:51:43.356909Z","id":"CVE-2026-72688","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

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.

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE-306

https://github.com/OpenSignLabs/OpenSign

[{"vendor":"OpenSignLabs","product":"opensignserver","defaultStatus":"affected","versions":[{"version":"0","lessThanOrEqual":"2.37.0","versionType":"semver","status":"affected"}]}]