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Advisory record · GHSA-pxq6-2prw-chj9

Moby has an Off-by-one error in its plugin privilege validation

CVSS 6.8 MediumEPSS 0.0040 · 34th percentile

Published by the GitHub Advisory Database at 27 Mar 2026, 17:38 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/docker/dockerGoall versionsNo fixed version yet
github.com/moby/moby/v2Go<2.0.0-beta.82.0.0-beta.8
github.com/moby/mobyGoall versionsNo fixed version yet
Identifiers
GHSA-pxq6-2prw-chj9 · CVE-2026-33997 · GO-2026-4883
Weakness (CWE)
CWE-193 · CWE-266
Tags
Published
27 Mar 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Moby (github.com/docker/docker and github.com/moby/moby, with no fixed version listed) contains an off-by-one error in plugin privilege validation during plugin installation, so the daemon may accept a privilege set that differs from the one the user approved. An attacker would need to get a malicious plugin installed, and the source states that Docker Desktop does not support plugins. Upgrade github.com/moby/moby/v2 to 2.0.0-beta.8 or later; no fixed version is listed for the other two packages.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.8 Medium 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0040, the 34th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:14 UTC First seen by agentprime
  2. 31 Oct 2026, 14:14 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.