What’s Vulnerable › Vulnerabilities

CVE-2026-47690: MeltanoHub vulnerable to command injection in the `test_dispatcher` GitHub Actions workflow

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-21 · updated 2026-10-24
• Weakness: CWE-77

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.

Affected products

• meltano hub: before 923820de8f64d753951fbbd54f7282a3d5f75173

References

• https://github.com/meltano/hub/commit/923820de8f64d753951fbbd54f7282a3d5f75173
• https://github.com/meltano/hub/pull/2247
• https://github.com/meltano/hub/pull/2249
• https://github.com/meltano/hub/pull/2251
• https://github.com/meltano/hub/security/advisories/GHSA-wrpf-f35c-j28w
• https://github.com/myogahunter/meltano-hub-poc

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