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CVE-2026-33576 — Vulnerability in openclaw — CVE Details

MEDIUM

OpenClaw: Zalo channel downloads media before sender authorization

Published March 31, 2026Updated April 6, 2026Source: osv

Summary

## Summary The Zalo image path fetched and stored inbound media before the DM/pairing authorization checks ran. ## Impact Unauthorized senders could force network fetches and disk writes in the inbound media store even when the message itself was rejected. ## Affected Component `extensions/zalo/src/monitor.ts` ## Fixed Versions - Affected: `<= 2026.3.24` - Patched: `>= 2026.3.28` - Latest stable `2026.3.28` contains the fix. ## Fix Fixed by commit `68ceaf7a5f` (`zalo: gate image downloads before DM auth`). OpenClaw thanks @AntAISecurityLab for reporting.

Advisory Timeline

  • First published March 31, 2026 (195 days ago).
  • Last revised April 6, 2026 — 6 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update openclaw to 2026.3.28 or later
npm install openclaw@2026.3.28

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: npm (1).

PackageEcosystemAffectedFixed In
openclaw
npm
All versions2026.3.28

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-862
    Missing AuthorizationMITRE
  • CWE-863
    Incorrect AuthorizationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2026-33576?
OpenClaw: Zalo channel downloads media before sender authorization This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2026-33576?
CVE-2026-33576 affects openclaw. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-33576 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-v2v2-f783-358j

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