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Should I Use Runatlantis (Atlantis)?

runatlantis.io·Analyzed 2 days ago··Based on 11 sources

Terraform Pull Request Automation

Verdict

Depends

Great fit if you have 3+ engineers collaborating on Terraform via pull requests and someone to operate a server.

Confidence: Medium

Skip it if you're a solo dev or want a zero-ops managed platform with vendor support.

Free self-hosted Terraform PR automation. Great for 3+ engineer teams; solo devs just use plain CI.

Key stats

  • Value for money: 5/5

    Rating

  • $0

    Starting price

  • 11

    Sources

  • Analyzed

  • Value for money: 5/5. Free forever; only cost is your ops time
  • Ease of use: 3/5. Helm/Docker setup; per-repo config files
  • Feature depth: 4/5. Custom workflows, policy checks, drift detection
  • Support quality: 2/5. Guess: community GitHub support, no SLA
  • Security posture: 2/5. Four advisories 2025-26, including CVSS 8.1
  • $0 Price Open source, no paid tiers
  • Self-hosted Hosting model Credentials stay in your infra
  • CVSS 8.1 Worst recent CVE CVE-2026-64679, path traversal
  • 4 Public advisories 2025-2026 window

Pricing

Open Source (self-hosted)

$0

  • Unlimited repos and users on your own infra
  • Docker and Kubernetes Helm deployment
  • Community support only
Best for and not for

Best for

  • Teams of 3+ engineers on Terraform
  • PR-driven plan/apply workflows
  • Cost-conscious orgs avoiding per-user IaC pricing
  • Shops keeping cloud credentials in-house

Not for

  • Solo developers — running terraform plan locally is enough
  • Small teams wanting a zero-ops managed platform
  • Orgs needing SLA-backed vendor support
  • Teams with nobody to patch and monitor a server

Biggest gotcha

  • highFour public security advisories in 2025-2026; track releases and patch fast
  • mediumFree software, not free ops: upgrades, backups, and HA are your job⁴
  • mediumNo vendor SLA — production breakage depends on community GitHub issues⁶
  • mediumPlans can go stale between PR updates, forcing manual refreshes

Pros

  • Free and open source — no seats or usage pricing²
  • Self-hosted, so cloud credentials stay on your infra¹
  • Automates terraform plan/apply inside pull requests²
  • Built-in policy checks via Conftest/OPA³
  • Custom workflows handle non-standard setups

Cons

  • Self-hosted: you own uptime, scaling, and HA⁶
  • Recurring CVEs 2025-2026, including an auth-bypass flaw⁸
  • Stale plan bugs reported on old PRs
  • No vendor SLA; you rely on community support11

Security

Active advisory stream: auth bypass, path traversal (CVSS 8.1), and info exposure fixed across 2025-2026 releases — patch promptly.

  • CVE-2026-82282Atlantis through 0.47.1 fails to authenticate the /github-app endpoint⁸
  • CVE-2026-64679 (CVSS 8.1)Path traversal vulnerability rated high severity⁹
  • CVE-2025-58445Vulnerability in runatlantis tracked by NVD, September 202510
  • GHSA-xh7v-965r-23f7Service version publicly exposed via /status API endpoint

What users say

Users on Reddit actively champion Atlantis for Terraform PR automation, though some hesitate about self-hosting responsibilities.

“PSA: Love terraform? Love CI/CD? You want to run Atlantis.”
Reddit, r/devops

Methodology

Based on ~35 public sources; thin on structured ratings since it's open-source tooling with no vendor review pages.

Sources

  1. Atlantis official siterunatlantis.io
    official
  2. runatlantis/atlantis on GitHubgithub.com
    official
  3. Conftest Policy Checking docsrunatlantis.io
    official
  4. Atlantis deployment docs (Helm/K8s)github.com
    official
  5. Reddit PSA recommending Atlantisreddit.com
    review
  6. Reddit: HA for Atlantis Open Source?reddit.com
    review
  7. Atlantis Review 2026devopsboys.com
    review
  8. CVE-2026-82282 (Rapid7)rapid7.com
    security
  9. CVE-2026-64679 (SentinelOne)sentinelone.com
    security
  10. CVE-2025-58445 (NVD)nvd.nist.gov
    security
  11. Gruntwork: Atlantis or Terragrunt Scalegruntwork.io
    news

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