Moby symlink

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Moby. It has been rated as critical. The impacted element is an unknown function. The manipulation leads to symlink. This vulnerability is referenced as CVE-2026-42306. The attack can only be performed from a local environment. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Moby (version unknown). This issue affects an unknown function. The manipulation with an unknown input leads to a symlink vulnerability. Using CWE to declare the problem leads to CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. Impacted is integrity, and availability. The summary by CVE is:

Moby is an open source container framework. In Docker Engine prior to version 29.5.1, Docker Daemon versions 28.5.2 and prior, and Moby Daemon prior to version 2.0.0-beta.14, a race condition during docker cp mount setup allows a malicious container to redirect a bind mount target to an arbitrary host path, potentially overwriting host files or causing denial of service. This issue has been patched in Docker Engine version 29.5.1 and Moby Daemon version 2.0.0-beta.14.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-42306 since 04/26/2026. The exploitation is known to be difficult. An attack has to be approached locally. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 320983 (Linux Distros Unpatched Vulnerability : CVE-2026-42306), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (320983), EUVD (EUVD-2026-36528) and CERT Bund (WID-SEC-2026-1584). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Amazon Linux 2
  • SUSE Linux
  • SUSE openSUSE
  • IBM MQ
  • Open Source docker

Productinfo

Name

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 3.6
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.2
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 320983
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-42306

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/26/2026 CVE reserved
06/12/2026 +47 days Advisory disclosed
06/12/2026 +0 days VulDB entry created
07/05/2026 +23 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-rg2x-37c3-w2rh
Status: Confirmed

CVE: CVE-2026-42306 (🔒)
GCVE (CVE): GCVE-0-2026-42306
GCVE (VulDB): GCVE-100-370685
EUVD: 🔒
CERT Bund: WID-SEC-2026-1584 - docker: Mehrere Schwachstellen

Entryinfo

Created: 06/12/2026 22:32
Updated: 07/05/2026 17:29
Changes: 06/12/2026 22:32 (61), 06/13/2026 10:03 (1), 06/14/2026 11:11 (2), 06/19/2026 16:39 (7), 07/05/2026 17:29 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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