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CVE-2026-35622· NVD / CVE Program· CNA VulnCheck

OpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook

OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.

MediumCVSS 6.0 · v4.0—No exploit Fix available
Published
Apr 9, 2026
Updated
Jun 23, 2026
EPSS
0.4% · 35th percentile
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Report tools

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Action score

24

Monitor

Low priority for now.

CVSS
24 / 40 · 6.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulnCheck
6.0
NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
openclawopenclaw

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • openclaw openclawbefore 2026.3.22

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulnCheck). Independent of NVD's CPE analysis and usually ahead of it.

  • OpenClaw OpenClaw

    • 2026.3.22not affected
    • before 2026.3.22affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
npmopenclawbefore 2026.3.222026.3.22

Same product

openclaw: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-25253OpenClaw (aka clawdbot or Moltbot) before 2026.1.29 obtains a gatewayUrl value from a query string and automatically makes a WebSocket conne
    42Plan
  • CVE-2026-30741A remote code execution (RCE) vulnerability in OpenClaw Agent Platform v2026.2.6 allows attackers to execute arbitrary code via a Request-Si
    39Monitor
  • CVE-2026-43534OpenClaw < 2026.4.10 - Unsanitized External Input in Agent Hook Events
    37Monitor
  • CVE-2026-33579OpenClaw < 2026.3.28 - Privilege Escalation via Missing Caller Scope Validation in Device Pair Approval
    37Monitor
  • CVE-2026-32917OpenClaw < 2026.3.13 - Remote Command Injection via Unsanitized iMessage Attachment Paths in SCP
    37Monitor
  • CVE-2026-32987OpenClaw < 2026.3.13 - Bootstrap Setup Code Replay via Device Pairing
    37Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
OpenClaw OpenClaw2026.3.22Vendor (CNA)
npm:openclaw2026.3.22Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-3201421 days apartOpenClaw < 2026.2.26 - Node Reconnect Metadata Spoofing via Unsigned Platform Fields
    34Monitor
  • CVE-2026-4411827 days apartOpenClaw < 2026.4.22 - Owner Context Spoofing via Bearer Token Header
    34Monitor
  • CVE-2026-5381763 days apartOpenClaw < 2026.5.22 - Control UI Locality Spoofing in Device Pairing
    34Monitor
  • CVE-2026-5382364 days apartOpenClaw < 2026.5.3 - Privilege Escalation via Mutable Slack Display Names in allowFrom
    34Monitor
  • CVE-2026-5384968 days apartOpenClaw < 2026.5.7 - Privilege Escalation via Mutable Discord Display Names in allowFrom
    34Monitor
  • CVE-2026-5385768 days apartOpenClaw < 2026.5.3 - Mutable Display Name Binding in Zalo allowFrom Policy
    34Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2026-356250 days apartOpenClaw < 2026.3.25 - Privilege Escalation via Silent Local Shared-Auth Reconnect
    34Monitor
  • CVE-2026-356390 days apartOpenClaw < 2026.3.22 - Privilege Escalation via device.pair.approve Scope Validation
    34Monitor
  • CVE-2026-356320 days apartOpenClaw <= 2026.2.22 - Symlink Traversal via IDENTITY.md appendFile in agents.create/update
    27Monitor
  • CVE-2026-356290 days apartOpenClaw < 2026.3.25 - Server-Side Request Forgery via Unguarded Configured Base URLs in Channel Extensions
    21Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
X

Weakness class (CWE)

CWE-290 · Authentication Bypass by Spoofing

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records