CVE-2026-82282: Missing Authentication for Critical Function in runatlantis atlantis
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.
CVE-2026-82282: Missing Authentication for Critical Function in runatlantis atlantis
Description
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.
CVSS v4.0
Score 8.8high
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-28T11:12:51.276Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a91e416acd9273b4942e91c
Added to database: 08/28/2026, 19:40:06 UTC
Last updated: 08/28/2026, 22:08:17 UTC
Views: 5
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