Is CVE-2026-34040 actively exploited?

No active exploitation of CVE-2026-34040 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34040 be exploited remotely?

No. CVE-2026-34040 requires local access to exploit.

What is the CVSS score of CVE-2026-34040?

CVE-2026-34040 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2026-34040

HIGH

CVE-2026-34040

CWE-288Published: March 31, 2026· Updated: Apr 3, 2026

7.8

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.6th

Official 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.

NVD Source

Technical Analysis

CVE-2026-34040 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges Req.Low

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

mobyproject1 product

moby

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Exploit-DB

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

PacketStorm

Security advisories & exploits

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/moby/moby/security/advisories/GHSA-x744-4wpc-v9h2

News & Research Mentioning CVE-2026-34040

Docker CVE-2026-34040 Lets Attackers Bypass Authorization and Gain Host Access

The Hacker News· Apr 7, 2026

A high-severity security vulnerability has been disclosed in Docker Engine that could permit an attacker to bypass authorization plugins (AuthZ) under specific circumstances. The vulnerability, tracked as CVE-2026-34040 (CVSS score: 8.8), stems from an incomplete fix for CVE-2024-41110, a maximum-severity vulnerability in the same component that came to light in July 2024. " [xlite_meta score:56 src:The Hacker News xlite_fp:a2bb3195b4e26497a696654d548be691db1b557aa49774771b0ea63f8ba2282a]