7.5
HIGH CVSS 3.1
CVE-2026-47690
MeltanoHub vulnerable to command injection in the `test_dispatcher` GitHub Actions workflow
Description

MeltanoHub is the source code for hub.meltano.com, the central place for Meltano plugins. Versions of the repo prior to commit 923820de8f64d753951fbbd54f7282a3d5f75173 were vulnerable to exfiltration of `GITHUB_TOKEN` with write permissions to the repository. The vulnerable workflow used pull_request_target, which runs in the context of the base repository with access to secrets. Commit 923820de8f64d753951fbbd54f7282a3d5f75173 fixes the issue. No known workarounds are available.

INFO

Published Date :

July 21, 2026, 9:16 p.m.

Last Modified :

July 23, 2026, 4:15 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-47690 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH [email protected]
Solution
Update the repository to the latest version to prevent GITHUB_TOKEN exfiltration.
  • Update the repository to commit 923820de8f64d753951fbbd54f7282a3d5f75173.
  • Review repository secrets and permissions.
References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-47690 is associated with the following CWEs:

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-2026-47690 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-47690 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.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jul. 22, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-47690', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-22T14:59:25.349694Z'}
  • New CVE Received by [email protected]

    Jul. 21, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'meltano', 'product': 'hub', 'versions': [{'status': 'affected', 'version': '< 923820de8f64d753951fbbd54f7282a3d5f75173'}]}]
    Added Description MeltanoHub is the source code for hub.meltano.com, the central place for Meltano plugins. Versions of the repo prior to commit 923820de8f64d753951fbbd54f7282a3d5f75173 were vulnerable to exfiltration of `GITHUB_TOKEN` with write permissions to the repository. The vulnerable workflow used pull_request_target, which runs in the context of the base repository with access to secrets. Commit 923820de8f64d753951fbbd54f7282a3d5f75173 fixes the issue. No known workarounds are available.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
    Added CWE CWE-77
    Added CWE CWE-1336
    Added Reference https://github.com/meltano/hub/commit/923820de8f64d753951fbbd54f7282a3d5f75173
    Added Reference https://github.com/meltano/hub/pull/2247
    Added Reference https://github.com/meltano/hub/pull/2249
    Added Reference https://github.com/meltano/hub/pull/2251
    Added Reference https://github.com/meltano/hub/security/advisories/GHSA-wrpf-f35c-j28w
    Added Reference https://github.com/myogahunter/meltano-hub-poc
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.