CVE-2026-33997

Description

Moby is an open source container framework. Prior to version 29.3.1, a security vulnerability has been detected that allows plugins privilege validation to be bypassed during docker plugin install. Due to an error in the daemon's privilege comparison logic, the daemon may incorrectly accept a privilege set that differs from the one approved by the user. Plugins that request exactly one privilege are also affected, because no comparison is performed at all. This issue has been patched in version 29.3.1.

CVSS Metrics

• v3.1•MEDIUM•Score: 6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
• v3.1•HIGH•Score: 8.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS Trends

Current EPSS score: 0.39%• Percentile: 33%

Techniques & Countermeasures

• CWE-193•Off-by-one Error

  A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

• CWE-266•Incorrect Privilege Assignment

  A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

Affected Systems

• chainguard•agentbeat

  all

• chainguard•agentbeat-fips

  all

• chainguard•amazon-cloudwatch-agent

  all

• chainguard•amazon-cloudwatch-agent-fips

  all

• chainguard•amazon-cloudwatch-agent-operator

  < 3.6.0-r0

• chainguard•amazon-cloudwatch-agent-operator-fips

  < 3.6.0-r0

• chainguard•amazon-ecs-agent

  all

• chainguard•amazon-ecs-agent-fips

  all

• chainguard•apko

  < 1.2.0-r0

• chainguard•auditbeat-8.17

  all

• chainguard•auditbeat-8.18

  all

• chainguard•auditbeat-8.19

  < 8.19.17-r0

• chainguard•auditbeat-9.0

  all

• chainguard•auditbeat-9.1

  all

• chainguard•auditbeat-9.2

  all

• chainguard•auditbeat-9.3

  < 9.3.6-r0

• chainguard•auditbeat-9.4

  < 9.4.3-r0

• chainguard•auditbeat-fips-8.17

  all

• chainguard•auditbeat-fips-8.18

  all

• chainguard•auditbeat-fips-8.19

  < 8.19.17-r0

• chainguard•auditbeat-fips-9.0

  all

• chainguard•auditbeat-fips-9.1

  all

• chainguard•auditbeat-fips-9.2

  all

• chainguard•auditbeat-fips-9.3

  < 9.3.6-r0

• chainguard•auditbeat-fips-9.4

  < 9.4.3-r0

• chainguard•aws-otel-collector

  < 0.48.0-r0

• chainguard•aws-otel-collector-fips

  < 0.48.0-r0

• chainguard•buf

  < 1.68.3-r0

• chainguard•buildah

  < 1.44.0-r0

• chainguard•buildah-fips

  < 1.44.0-r0

• chainguard•cg

  < 0.2.235-r0 | < 0.2.231-r0

• chainguard•chainctl

  all

• chainguard•chainctl-fips

  all

• chainguard•chainloop-control-plane

  < 1.100.8-r0

• chainguard•chainloop-control-plane-fips

  < 1.100.8-r0

• chainguard•chaos-mesh

  all

• chainguard•chaos-mesh-daemon

  all

• chainguard•chaos-mesh-dashboard

  all

• chainguard•chaos-mesh-fips

  all

• chainguard•chaos-mesh-fips-daemon

  all

• chainguard•chaos-mesh-fips-dashboard

  all

• chainguard•cloudbeat-8.17

  all

• chainguard•cloudbeat-8.18

  all

• chainguard•cloudbeat-8.19

  all

• chainguard•cloudbeat-9.0

  all

• chainguard•cloudbeat-9.1

  all

• chainguard•cloudbeat-9.2

  all

• chainguard•cloudbeat-9.3

  < 9.3.8-r0

• chainguard•cloudbeat-9.4

  < 9.4.4-r0

• chainguard•cloudbeat-fips-8.17

  all

Showing first 50 affected entries in server-rendered view.

References (14)

• https://github.com/moby/moby/security/advisories/GHSA-pxq6-2prw-chj9
• https://github.com/moby/moby/commit/f4d6f25bf0c3fa12d4968320a45685947756a22a
• https://docs.docker.com/engine/extend/legacy_plugins
• https://github.com/moby/moby
• https://github.com/moby/moby/releases/tag/docker-v29.3.1
• https://nvd.nist.gov/vuln/detail/CVE-2026-33997
• https://access.redhat.com/security/cve/CVE-2026-33997
• https://bugzilla.redhat.com/show_bug.cgi?id=2453277
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33997.json
• https://access.redhat.com/errata/RHSA-2026:22347
• https://access.redhat.com/errata/RHSA-2026:21769
• https://access.redhat.com/errata/RHSA-2026:23345
• https://security-tracker.debian.org/tracker/CVE-2026-33997
• https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33997.json