CVE-2026-47690 MeltanoHub vulnerable to command injection in the `test_dispatcher` GitHub Actions workflow
Attackers can inject commands in the test_dispatcher workflow to exfiltrate the GITHUB_TOKEN, enabling repository write access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-47690?
CVE-2026-47690 is a high-severity command injection vulnerability in meltano hub, published on 21 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-47690?
How do I fix CVE-2026-47690?
No fix has been published for CVE-2026-47690 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-47690 being exploited?
There is no known exploitation of CVE-2026-47690 in the wild and no public exploit code.
Sources
Also known as GHSA-wrpf-f35c-j28w.