High 8.8Published Oct 27, 2026

CVE-2026-116676Atlantis: OS command injection through PR-controlled Terraform workspace enables RCE during plan

Updated under an hour ago (Oct 29, 2026, 11:23 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Start free and add your stackFree account, 3 products Every CVE for runatlantis atlantis Exploited in the last 30 days

Atlantis is a self-hosted golang application that listens for Terraform pull request events via webhooks. From version 0.4.0 until 0.47.1, Atlantis passes the pull-request-controlled workspace value from atlantis.yaml into Terraform command arguments that are joined with strings.Join(args, " ") and executed through sh -c. An authenticated contributor whose pull request is eligible for an Atlantis plan can include shell metacharacters in the workspace name, causing arbitrary commands to execute as the Atlantis service account without custom workflows, apply permission, or a malicious Terraform provider. External contributors can reach the flaw through fork pull requests only when --allow-fork-prs is enabled, while eligible same-repository branches do not require that option. The commands inherit the Atlantis process environment and can access cloud-provider, Terraform, and version-control credentials as well as files, state, and network resources available to the service. This issue is fixed in version 0.47.1.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 27, 2026
First seen by InfoSec Signals: Oct 27, 2026

Affected products

Affected products

runatlantis atlantis runatlantis:atlantis (from the name)	from 0.4.0, < 0.47.1	CNA record

References

References

https://github.com/runatlantis/atlantis/security/advisories/GHSA-rjh2-4xgw-p2hj	x-refsource-confirm
https://github.com/runatlantis/atlantis/pull/6792	x-refsource-misc
https://github.com/runatlantis/atlantis/commit/8dd22b4d0a9d7c129fdbf6a3398dd1c4cf8c3a59	x-refsource-misc
https://github.com/runatlantis/atlantis/commit/f04df0d53f0544d9eb6f5026dd8b74fbefd82ac8	x-refsource-misc
https://github.com/runatlantis/atlantis/releases/tag/v0.47.1	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.