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CVE-2026-34040

Docker Engine•HIGH · CVSS 7.8•No exploitation reported

What is CVE-2026-34040?

Moby is an open source container framework. Prior to version 29.3.1, a security vulnerability has been detected that allows attackers to bypass authorization plugins (AuthZ). This issue has been patched in version 29.3.1.

CVSS7.8 NVD 3.1

SeverityHIGH

ExploitationNo exploitation reported

EPSS9% · P95

Triage statusNo Known Exploit

ActionPatch within 48 hours

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

CWECWE-288

NVD published2026-03-31

NVD last modified2026-06-17

Timeline

2026-03-31Published to the U.S. National Vulnerability Database (NVD)
2026-04-08First covered in a defend.network daily briefing
2026-06-17NVD record last updated

Affected product

Docker Engine

References

Referenced in our briefings & reports

APT28 DNS hijack via routers; Iran hits PLCs; Docker RCE (2026-04-08)

Related vulnerabilities

CVE-2026-102489 – Zammad GmbH Zammad (same vendor)
CVE-2026-102490 – Zammad GmbH Zammad (same vendor)
CVE-2026-19490 – Citrix NetScaler (same weakness: CWE-288)
CVE-2026-18577 – N-Able N-Central (same weakness: CWE-288)
CVE-2026-18556 – N-Able N-Central (same weakness: CWE-288)
CVE-2026-20079 – Cisco Secure Firewall Management Center (FMC) And Security Cloud Control (SCC) Firewall Management (same weakness: CWE-288)

Browse all tracked CVEs in the defend.network CVE database →

🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.