CVE-2026-108703 Overview
CVE-2026-108703 is a missing authorization vulnerability [CWE-862] affecting CordysCRM through version 1.9.3. The flaw resides in the POST /approval-resource/push endpoint, which fails to verify resource ownership before processing approval submissions. Authenticated low-privileged users can supply arbitrary resourceId values targeting contracts, invoices, quotations, or orders. This action alters the approval status of resources they do not own and exposes approval details intended for other users.
Critical Impact
Authenticated attackers can manipulate approval workflows for business-critical records including contracts and invoices, breaking data integrity and leaking confidential approval details.
Affected Products
- CordysCRM through 1.9.3
- CordysCRM backend/crm approval module (ApprovalResourceController)
- Deployments exposing the /approval-resource/push endpoint to authenticated users
Discovery Timeline
- 2026-10-11 - CVE CVE-2026-108703 published to NVD
- 2026-10-14 - Last updated in NVD database
Technical Details for CVE-2026-108703
Vulnerability Analysis
The vulnerability is a missing authorization flaw in the approval workflow of CordysCRM. The ApprovalResourceController exposes a POST /approval-resource/push handler that accepts a resourceId and a resource type referring to contracts, invoices, quotations, or orders. The controller authenticates the caller but does not confirm that the caller owns or is otherwise entitled to act on the referenced resource.
Any authenticated user, including the lowest-privileged role, can submit arbitrary identifiers. The server processes the request, pushes the record into the approval pipeline, and returns approval details. This breaks the segregation between resource owners and other tenants of the CRM, and it corrupts the integrity of downstream approval decisions.
The impact aligns with the CWE-862 pattern: an access control decision is required but not enforced at the handler level. See the GitHub Approval Resource Controller for the vulnerable handler and the VulnCheck Advisory on CordysCRM for additional context.
Root Cause
The root cause is the absence of an ownership or role check in the ApprovalResourceController.push handler. The code trusts the client-supplied resourceId and resource type without correlating them to the authenticated principal. No service-layer or repository-layer guard enforces the owner-to-resource binding before mutating approval state.
Attack Vector
Exploitation requires a valid authenticated session with low privileges. The attacker enumerates or guesses numeric resourceId values for business objects such as contracts, invoices, quotations, or orders. The attacker then issues a POST request to /approval-resource/push referencing the target resource. The server mutates approval state and returns approval metadata belonging to another user.
A public proof-of-concept script is published at the GitHub PoC for CordysCRM. No verified code examples are reproduced here. Refer to the external advisory for the request body structure used in exploitation.
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Stop Identity AttacksDetection Methods for CVE-2026-108703
Indicators of Compromise
- Unexpected POST /approval-resource/push requests from accounts that do not own the referenced resourceId.
- Approval status changes on contracts, invoices, quotations, or orders without a corresponding owner or manager action in audit logs.
- Sequential or enumerative resourceId values submitted by a single session over a short window.
Detection Strategies
- Correlate web access logs for /approval-resource/push with the authenticated user ID and the owner field of the referenced resource. Flag mismatches.
- Alert on any authenticated user generating a high volume of approval-push requests within minutes.
- Review database audit trails on approval tables for status transitions that lack a matching ownership record.
Monitoring Recommendations
- Ingest CordysCRM application logs into a centralized log platform and build a rule for cross-owner approval submissions.
- Monitor low-privileged accounts for first-time access to the /approval-resource/* route family.
- Track outbound notification events triggered by approval state changes to detect anomalous spikes.
How to Mitigate CVE-2026-108703
Immediate Actions Required
- Restrict network access to the CordysCRM /approval-resource/push endpoint using an upstream proxy or WAF rule until a vendor patch is applied.
- Audit all CordysCRM accounts and disable or downgrade dormant low-privileged users that are not required for business operations.
- Review approval status history for contracts, invoices, quotations, and orders processed on CordysCRM 1.9.3 or earlier.
Patch Information
At the time of publication, no fixed version has been identified in the enriched data. CordysCRM is affected through 1.9.3. Monitor the VulnCheck Advisory on CordysCRM and the CordysCRM repository for an upstream fix that adds ownership validation to ApprovalResourceController.
Workarounds
- Deploy a reverse-proxy rule that validates the caller's session user against the resource owner before forwarding requests to /approval-resource/push.
- Enforce least-privilege role assignments in CordysCRM so that only designated approvers can authenticate to the application tier.
- Enable detailed application and database audit logging to allow rapid rollback of unauthorized approval state changes.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
