CVE-2026-118131
CVE-2026-118131
Description
GnuPG (version 2.5.21) for Windows contains a vulnerability where default Discretionary Access Control List (DACL) inheritance on the C:\ProgramData directory allows members of the BUILTIN\Users group to create arbitrary subdirectories under this path. An attacker with low-privilege access can create the expected GnuPG configuration directory and inject malicious configuration files consumed by GnuPG components. This can result in code execution within the security context of the victim user.
INFO
Published Date :
Oct. 27, 2026, 6:17 p.m.
Last Modified :
Oct. 27, 2026, 6:17 p.m.
Remotely Exploit :
No
Source :
[email protected]
Solution
- Configure DACLs to prevent unauthorized subdirectory creation in C:\ProgramData.
- Remove write permissions for the BUILTIN\Users group on C:\ProgramData.
- Ensure GnuPG is updated to the latest version.
- Review GnuPG configuration files for integrity.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-118131.
| URL | Resource |
|---|---|
| https://atos.net/en/lp/cybershield/a-tale-of-several-hijacks-and-what-it-taught-me-about-runtime-driven-testing |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-118131 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-118131
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-118131 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-118131 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Oct. 27, 2026
Action Type Old Value New Value Added Description GnuPG (version 2.5.21) for Windows contains a vulnerability where default Discretionary Access Control List (DACL) inheritance on the C:\ProgramData directory allows members of the BUILTIN\Users group to create arbitrary subdirectories under this path. An attacker with low-privilege access can create the expected GnuPG configuration directory and inject malicious configuration files consumed by GnuPG components. This can result in code execution within the security context of the victim user. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/118xxx/CVE-2026-118131.json">CVE-2026-118131</a> Added Reference https://atos.net/en/lp/cybershield/a-tale-of-several-hijacks-and-what-it-taught-me-about-runtime-driven-testing