CVSS 4.0
8.8 highCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:NCVE-2026-82282
High (8.8). EPSS 0.4% chance of exploitation in the next 30 days.
Atlantis through 0.47.1 fails to authenticate the /github-app/setup endpoint, allowing unauthenticated attackers to access GitHub App credentials. Attackers can observe or intercept the GitHub redirect during setup to obtain the RSA private key and webhook secret, enabling installation token minting and webhook payload forgery.
Severity
CVSS 3.1
8.0 highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
- CWE
- CWE-306
- Published
- Modified
- Record from
- the NVD, synced
References
- https://github.com/runatlantis/atlantis
- https://github.com/runatlantis/atlantis/blob/12bfa59f44d8f65bfdda132bff61d8f8f29af1d6/server/controllers/github_app_controller.go
- https://github.com/runatlantis/atlantis/blob/12bfa59f44d8f65bfdda132bff61d8f8f29af1d6/server/middleware.go
- https://github.com/runatlantis/atlantis/issues/6622
- https://www.vulncheck.com/advisories/atlantis-github-app-setup-endpoint-returns-app-credentials-to-unauthenticated-callers