Moby: Off-by-one error in plugin privilege validation_CVE-2026-33997

6.8 / 10

MEDIUM

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

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.

Basic Information

ID CVE-2026-33997

Source GitHub_M

Published Mar 31, 2026 at 01:36

Modified Apr 2, 2026 at 03:55

Affected Product

Vendor moby

Product moby

Version < 29.3.1

Affected Versions moby moby < 29.3.1

CWE Classification

CWE-193

References

{
    "lastseen": "",
    "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.",
    "published": "2026-03-31T01:36:51.404Z",
    "modified": "2026-04-02T03:55:57.801Z",
    "type": "cve",
    "title": "Moby: Off-by-one error in plugin privilege validation",
    "source": "GitHub_M",
    "references": "https://github.com/moby/moby/security/advisories/GHSA-pxq6-2prw-chj9\nhttps://github.com/moby/moby/releases/tag/docker-v29.3.1",
    "id": "CVE-2026-33997",
    "bulletinFamily": "",
    "cwe": [
        "CWE-193"
    ],
    "cvelist": null,
    "sourceData": "moby moby < 29.3.1",
    "sourceHref": "",
    "cvss": {
        "score": 6.8,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "moby",
    "version": "< 29.3.1",
    "vendor": "moby",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}