CVE-2026-72545: Authorization Bypass Through User-Controlled Key

An insecure direct object reference vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to write to any contact record via the updatecontacttour Parse cloud function. The function performs no authentication or authorization before updating the target...

CVE-2026-72549: Exposure of Sensitive Information to an Unauthorized Actor

An information disclosure vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to map any email address or username to its internal user objectId via the getUserId Parse cloud function. The function performs no authentication before resolving and returning...

CVE-2026-72544: Insufficient Verification of Data Authenticity

An integrity verification vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to forge document audit-trail entries via the triggerevent Parse cloud function. The function accepts viewer identity and IP address as caller-supplied parameters without...

CVE-2026-72548: Exposure of Sensitive Information to an Unauthorized Actor

An information disclosure vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to retrieve any organisation tenant record via the gettenant Parse cloud function. The function accepts a contactId parameter and returns the full tenant record without...

CVE-2026-72543: Authorization Bypass Through User-Controlled Key

An insecure direct object reference vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to retrieve any contact record via the getcontact Parse cloud function. The function executes with useMasterKey and performs no authentication or authorization checks...

CVE-2026-72692

A missing authorization vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to irreversibly decline any in-flight document and forge the decline attribution to an arbitrary user via the declinedoc Parse cloud function. The function writes...

CVE-2026-72692

A missing authorization vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to irreversibly decline any in-flight document and forge the decline attribution to an arbitrary user via the declinedoc Parse cloud function. The function writes...

CVE-2026-72689 OpenSignLabs opensignserver - Broken Object Level Authorization

A broken object-level authorization vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read complete contract records via the getDocument Parse cloud function. The function fetches documents using useMasterKey, bypassing the object ACL, and...

CVE-2026-72689

OpenSignLabs opensignserver prior to 2.37.0 is affected by a Broken Object-Level Authorization issue. The getDocument Parse cloud function fetches documents using useMasterKey, bypassing object ACLs and returning full contract records, including sender and signer PII and a pre-signed document dow...

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 fileupload Parse cloud function. The function mints MASTERKEY-signed file access tokens for any caller-supplied URL without...

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 fileupload Parse cloud function. The function mints MASTERKEY-signed file access tokens for any caller-supplied URL without...

EUVD-2026-55521

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 MASTERKEY-signed file access tokens for any caller-supplied URL without...

CVE-2026-72688

CVE-2026-72688 concerns OpenSignLabs opensignserver (up to version 2.37.0). The flaw is a missing authentication vulnerability in the fileupload Parse cloud function, which mints MASTER_KEY-signed file access tokens for any caller-supplied URL without session verification. This allows an unauthen...

CVE-2026-72691: Authentication Bypass Using an Alternate Path or Channel

An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTERKEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. The function skips its isAuthenticated check whenever an...

CVE-2026-72692: Missing Authorization

A missing authorization vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to irreversibly decline any in-flight document and forge the decline attribution to an arbitrary user via the declinedoc Parse cloud function. The function writes...

CVE-2026-72688: 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 fileupload Parse cloud function. The function mints MASTERKEY-signed file access tokens for any caller-supplied URL without...

CVE-2026-72689: Authorization Bypass Through User-Controlled Key

A broken object-level authorization vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read complete contract records via the getDocument Parse cloud function. The function fetches documents using useMasterKey, bypassing the object ACL, and...