CVE-2026-72692: CWE-862: Missing Authorization in OpenSignLabs opensignserver
CVE-2026-72692 is a missing authorization vulnerability in OpenSignLabs opensignserver up to version 2.37.0. It allows an unauthenticated remote attacker to decline any in-flight document and forge the decline attribution to any user via the declinedoc Parse cloud function. This function improperly writes decline-related fields without verifying the caller's identity, enabling unauthorized workflow termination and falsification of evidentiary records.
AI Analysis
Technical Summary
The vulnerability in OpenSignLabs opensignserver through version 2.37.0 involves a missing authorization check in the declinedoc Parse cloud function. This function sets IsDeclined, DeclineReason, and DeclineBy fields on documents without verifying the caller's identity. As a result, an unauthenticated attacker can irreversibly decline any document in process and forge the decline attribution to an arbitrary user, potentially disrupting workflows and falsifying evidentiary records.
Potential Impact
An unauthenticated remote attacker can terminate document workflows by declining documents and forge the decline attribution to any user. This compromises the integrity of document processing and evidentiary records, potentially causing denial of service in document workflows and falsification of audit trails. Confidentiality and availability are not impacted according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround is currently documented. Until a fix is available, restrict access to the affected function if possible and monitor for unauthorized document declines.
CVE-2026-72692: CWE-862: Missing Authorization in OpenSignLabs opensignserver
Description
CVE-2026-72692 is a missing authorization vulnerability in OpenSignLabs opensignserver up to version 2.37.0. It allows an unauthenticated remote attacker to decline any in-flight document and forge the decline attribution to any user via the declinedoc Parse cloud function. This function improperly writes decline-related fields without verifying the caller's identity, enabling unauthorized workflow termination and falsification of evidentiary records.
CVSS v3.1
Score 7.5high
Affected software
OpenSignLabs
opensignserver
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in OpenSignLabs opensignserver through version 2.37.0 involves a missing authorization check in the declinedoc Parse cloud function. This function sets IsDeclined, DeclineReason, and DeclineBy fields on documents without verifying the caller's identity. As a result, an unauthenticated attacker can irreversibly decline any document in process and forge the decline attribution to an arbitrary user, potentially disrupting workflows and falsifying evidentiary records.
Potential Impact
An unauthenticated remote attacker can terminate document workflows by declining documents and forge the decline attribution to any user. This compromises the integrity of document processing and evidentiary records, potentially causing denial of service in document workflows and falsification of audit trails. Confidentiality and availability are not impacted according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround is currently documented. Until a fix is available, restrict access to the affected function if possible and monitor for unauthorized document declines.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TuranSec
- Date Reserved
- 2026-08-10T11:55:39.471Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a79c3abbf8831d539a7410b
Added to database: 08/10/2026, 12:27:23 UTC
Last enriched: 08/17/2026, 15:31:34 UTC
Last updated: 09/24/2026, 13:47:48 UTC
Views: 74
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