high7.5
CVE-2026-72688
A missing authentication vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read arbitrary stored documen…
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| OpenSignLabs Opensignserver | through 2.37.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.