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No exploitation reportedAwaiting NVD analysis

CVE-2026-118131

CVE-2026-118131

No exploitation reported by the sources we read.

  • Published2026-10-27
  • WeaknessCWE-379 · CWE-427 · CWE-732

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-10-2717:23CVE publishedCNA

Versions per branch

Products declared by the CNA1 product

As certcc, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • GnuPG
    Affected
    • = 2.5.21no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-10-27

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gnupg2Ubuntu:Pro:20.04:LTSall versions · no fixed version listed
  • gnupg2Ubuntu:Pro:18.04:LTSall versions · no fixed version listed
  • gnupg2Ubuntu:Pro:16.04:LTSall versions · no fixed version listed
  • gnupg2Ubuntu:26.10all versions · no fixed version listed
  • gnupg2Ubuntu:26.04:LTSall versions · no fixed version listed
  • gnupg2Ubuntu:24.04:LTSall versions · no fixed version listed
  • gnupg2Ubuntu:22.04:LTSall versions · no fixed version listed
  • gnupg2Azure Linux:3all versions · no fixed version listed

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2026-10-27
Last Modified
2026-11-04
NVD status
Awaiting Analysis
GitHub Advisory
GHSA-c8cg-36rg-65fq

Frequently asked questions

What is CVE-2026-118131?

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.

Is CVE-2026-118131 actively exploited?

Active exploitation of CVE-2026-118131 has not been confirmed. Its EPSS score was 0.2% on 2026-11-04, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-118131?

CVE-2026-118131 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record