CVE-2026-34040

Aliases:GHSA-x744-4wpc-v9h2GO-2026-4887
Advisory lineage Upstream: 0 Downstream: 7
Analyzed
Published: 31 Mar 2026, 01:36
Last modified:02 Apr 2026, 03:55

Vulnerability Summary

Overall Risk (default)
medium
37/100
CVSS Score
8.8 HIGH
v3.1 (cve.org)
EPSS Score
8.12% LOW
8% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

31 Mar 2026, 01:36
Published
Vulnerability first disclosed
02 Apr 2026, 03:55
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 8.12%• Percentile: 94%

Techniques & Countermeasures

  • CWE-288•Authentication Bypass Using an Alternate Path or Channel

    The product requires authentication, but the product has an alternate path or channel that does not require authentication.

Affected Systems

  • docker•engine

    < 29.3.1

  • github.com/docker•docker

    all | < 29.3.1

  • github.com/moby•moby

    all | < 29.3.1

  • github.com/moby/moby•v2

    < 2.0.0-beta.8

  • moby•moby

    < 29.3.1

  • mobyproject•moby

    < 29.3.1

References (7)