What is CVE-2026-33997?

CVE-2026-33997 is a medium-severity vulnerability in Moby, classified under Off-by-one Error. CVSS score: 6.8/10. Published 2026-03-31.

How severe is CVE-2026-33997?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Moby

CVE-2026-33997

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…

EPSS: 0.000 (4.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.

Affected products

Moby — versions < 29.3.1

Weakness classification (CWE)

CWE-193 — Off-by-one Error

References

https://github.com/moby/moby/security/advisories/GHSA-pxq6-2prw-chj9 (x_refsource_CONFIRM)
https://github.com/moby/moby/releases/tag/docker-v29.3.1 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33997?: CVE-2026-33997 is a medium-severity vulnerability in Moby, classified under Off-by-one Error. CVSS score: 6.8/10. Published 2026-03-31.
How severe is CVE-2026-33997?: Medium severity. CVSS v3 base score is 6.8 out of 10.