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GHSA-j26j-7qc4-3mrf

OpenClaw: MS Teams fileConsent/invoke missing conversation binding allowed cross-conversation pending-upload consumption

Medium npm
Severity
0.0 / 10
Medium · CVSS 4.0
Exploit chance (EPSS)
—
No score published
Known exploited
No
Not in CISA's catalog
Weakness
CWE-639 Authorization Bypass Through User-Controlled Key
CWE-862 Missing Authorization
Fix
2026.2.25
Upgrade openclaw to this version or later

Description

Summary

In openclaw MS Teams file-consent flow, pending uploads were authorized by uploadId alone. fileConsent/invoke did not verify the invoke conversation against the conversation that created the pending upload.

Impact

An attacker who obtained a valid uploadId within TTL could trigger cross-conversation upload completion (accept path) or cancel a victim pending upload (decline path).

Technical Details

  • Pending uploads stored conversationId, but invoke handling consumed by uploadId only.
  • The invoke path did not enforce conversation binding before uploadToConsentUrl(...) and pending-upload removal.
  • Fix binds accept/decline handling to normalized conversation id match before consuming pending upload state.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Latest published npm version (as of February 26, 2026): 2026.2.24
  • Vulnerable range: <= 2026.2.24
  • Patched in release: 2026.2.25

Remediation

Upgrade to openclaw 2026.2.25 (or later) once published.

Fix Commit(s)

  • 347f7b9550064f5f5b33c6e07f64e85b9657b6f1

Release Process Note

patched_versions is pre-set to the release (2026.2.25). Advisory published with npm release 2026.2.25.

OpenClaw thanks @tdjackey for reporting.

Affected versions

npm

PackageVulnerableFixed in
openclaw
< 2026.2.25
2026.2.25

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

openclaw npm → 2026.2.25

npm
npm install openclaw@2026.2.25
yarn
yarn add openclaw@2026.2.25
pnpm
pnpm add openclaw@2026.2.25

Severity breakdown

CVSS 4.0 0.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
Low
User interaction
None
Confidentiality (vulnerable system)
None
Integrity (vulnerable system)
Low
Availability (vulnerable system)
None
Confidentiality (subsequent systems)
None
Integrity (subsequent systems)
None
Availability (subsequent systems)
None

Weakness

CWE-639: Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

How to prevent it
  • Architecture and Design: For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
  • Architecture and Design, Implementation: Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
  • Architecture and Design: Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.

CWE-862: Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

How to prevent it
  • Architecture and Design: Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries. Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
  • Architecture and Design: Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].
  • Architecture and Design: Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
  • Architecture and Design: For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page. One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
  • System Configuration, Installation: Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.

References

Timeline

  1. Published
  2. Last updated by the source
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