CVE-2026-72692: CWE-862: Missing Authorization in OpenSignLabs opensignserver
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 IsDeclined, DeclineReason, and a caller-supplied DeclineBy pointer without verifying the caller's identity, enabling workflow termination and evidentiary record falsification against any accessible document.
AI Analysis
Technical Summary
CVE-2026-72692 is a missing authorization vulnerability (CWE-862) in OpenSignLabs opensignserver up to version 2.37.0. The declinedoc Parse cloud function improperly allows unauthenticated remote attackers to irreversibly decline any in-flight document and forge the decline attribution to an arbitrary user. This occurs because the function writes IsDeclined, DeclineReason, and a caller-supplied DeclineBy pointer without verifying the caller's identity, enabling unauthorized workflow termination and falsification of evidentiary records for any accessible document.
Potential Impact
An unauthenticated attacker can terminate document workflows by declining documents and forge the decline attribution to any user. This compromises the integrity of the document approval process and evidentiary records, potentially causing denial of legitimate document processing and falsification of audit trails. Confidentiality and availability are not impacted, but integrity is severely affected.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented. Until a fix is available, restrict access to the affected function if possible and monitor for unauthorized use.
CVE-2026-72692: CWE-862: Missing Authorization in OpenSignLabs opensignserver
Description
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 IsDeclined, DeclineReason, and a caller-supplied DeclineBy pointer without verifying the caller's identity, enabling workflow termination and evidentiary record falsification against any accessible document.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-72692 is a missing authorization vulnerability (CWE-862) in OpenSignLabs opensignserver up to version 2.37.0. The declinedoc Parse cloud function improperly allows unauthenticated remote attackers to irreversibly decline any in-flight document and forge the decline attribution to an arbitrary user. This occurs because the function writes IsDeclined, DeclineReason, and a caller-supplied DeclineBy pointer without verifying the caller's identity, enabling unauthorized workflow termination and falsification of evidentiary records for any accessible document.
Potential Impact
An unauthenticated attacker can terminate document workflows by declining documents and forge the decline attribution to any user. This compromises the integrity of the document approval process and evidentiary records, potentially causing denial of legitimate document processing and falsification of audit trails. Confidentiality and availability are not impacted, but integrity is severely affected.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented. Until a fix is available, restrict access to the affected function if possible and monitor for unauthorized use.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TuranSec
- Date Reserved
- 2026-08-10T11:55:39.471Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a79c3abbf8831d539a7410b
Added to database: 08/10/2026, 12:27:23 UTC
Last enriched: 08/10/2026, 12:41:07 UTC
Last updated: 08/10/2026, 16:11:55 UTC
Views: 7
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