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  4. CVE 2026 116676 atlantis os command injection through pr
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Back to active CVEs
High · CVSS 8.8CVE-2026-116676

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

Answer in brief

CVE-2026-116676 records a High severity (CVSS 8.8) vulnerability in Atlantis: OS command injection through PR-controlled Terraform workspace enables RCE during plan. The current sources do not mark it as known exploited. The current feed maps runatlantis/atlantis (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 27, 2026Updated Oct 27, 2026Source checked Oct 27, 2026First seen by HOL Oct 27, 2026Material review Oct 27, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps runatlantis/atlantis (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
runatlantis/atlantisgeneric>=0.4.0 <0.47.10.47.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for runatlantis/atlantis.
  2. 2Review the reported fix. Update runatlantis/atlantis to 0.47.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 27, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Improper Authentication in TP-Link TDDP v2 Allows Root Command Execution in TP-Link RE305Also CWE-78
  • Command Injection in tmpServer Allows Local Privilege Escalation in TP-Link RE305Also CWE-78

Record context

Vulnerability class
Command Injection
EPSS
Not reported
CWE IDs
CWE-78
Source
CVE List V5
Source checked
Oct 27, 2026
References
5 linked sources
Open source record