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No exploitation reportedFix available

CVE-2026-3690

No exploitation reported by the sources we read.

  • Published2026-04-11
  • Fixed in2026.2.19
  • WeaknessCWE-291

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

OpenClaw Canvas Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of OpenClaw. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the the authentication function for canvas endpoints. The issue results from improper implementation of authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-29311.

Timeline

dates in UTC
  1. 2026-04-1101:16CVE publishedNVD

Versions per branch

NVD · OSV
Openclaw
BranchAffectedFixed in
2026.2< 2026.2.192026.2.19

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As zdi, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • OpenClawother versions: unknown
    Affected
    • = 2026.2.17no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-04-11

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • openclawMinimOSall versions · fixed in 2026.2.19-r0

Full record on NVD

Fix

  1. Update Openclaw to 2026.2.19

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionnone2026-04-14
  • CNACVSS 3.07.4known since 2026-10-23
  • CNAweakness (CWE)CWE-291known since 2026-10-23
  • FIRST EPSSEPSS score0.8 %2026-11-09
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2026-03-04

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
2026-04-11
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-93g8-mgqc-w7h9 GHSA-vvjh-f6p9-5vcf

Frequently asked questions

What is CVE-2026-3690?

OpenClaw Canvas Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of OpenClaw. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the the authentication function for canvas endpoints. The issue results from improper implementation of authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-29311.

Is CVE-2026-3690 actively exploited?

Active exploitation of CVE-2026-3690 has not been confirmed. Its EPSS score was 0.8% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-3690?

CVE-2026-3690 has a CVSS v3 base score of 7.4 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

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