CVE-2026-67308Public exploitNetwork attack vector

Command execution via unvalidated workflow input interpolation

Published Aug 1, 2026 · Updated Aug 1, 2026

Shell injection in Wazuh GitHub Actions workflows before 44bf114 allows remote attackers to execute commands through crafted pull requests. The Linux package-builder workflow copies the VERSION.json version value into GITHUB_ENV, and composite actions interpolate it directly into Bash run steps without validation. A public-fork pull request must trigger the self-hosted workflow; injected commands then run with the runner's privileges and can read exposed CI credentials.

CVSS severity5.3
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Shell injection in Wazuh GitHub Actions workflows before 44bf114 allows remote attackers to execute commands through crafted pull requests. The Linux package-builder workflow copies the VERSION.json version value into GITHUB_ENV, and composite actions interpolate it directly into Bash run steps without validation. A public-fork pull request must trigger the self-hosted workflow; injected commands then run with the runner's privileges and can read exposed CI credentials.

The record

CVE
CVE-2026-67308
Published
Aug 1, 2026
Updated
Aug 1, 2026
Vendor
Wazuh
Product
Wazuh
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <44bf114

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wazuh · Wazuhversion=0 <44bf114

Published CVSS scores

5.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
10.0VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
4.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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