{"id":"CVE-2026-64679","sourceIdentifier":"security-advisories@github.com","published":"2026-08-21T21:17:01.920","lastModified":"2026-10-12T16:10:00.220","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"Atlantis is a self-hosted golang application that listens for Terraform pull request events via webhooks. From 0.19.8 until 0.45.0, Atlantis does not consistently validate user-controlled workspace values supplied through accepted repository-level atlantis.yaml configuration or authenticated /api/plan input before joining them into local workspace paths. Traversal segments can escape the intended per-pull workspace directory and cause clone preparation or other working-directory code paths to call os.RemoveAll, os.MkdirAll, or related filesystem operations on out-of-bounds directories before Terraform rejects the invalid workspace name. This can create, delete, or reuse writable paths with the privileges of the Atlantis process, causing integrity loss or denial of service. This issue is fixed in version 0.45.0."},{"lang":"es","value":"Atlantis es una aplicación golang autoalojada que escucha eventos de pull request de Terraform a través de webhooks. Desde la versión 0.19.8 hasta la 0.45.0, Atlantis no valida consistentemente los valores de espacio de trabajo controlados por el usuario proporcionados a través de la configuración atlantis.yaml aceptada a nivel de repositorio o la entrada autenticada de /API/plan antes de unirlos en rutas de espacio de trabajo locales. Los segmentos de recorrido pueden escapar del directorio de espacio de trabajo previsto por pull y causar que la preparación de clonación u otras rutas de código de directorio de trabajo llamen a os.RemoveAll, os.MkdirAll o a operaciones de sistema de archivos relacionadas en directorios fuera de los límites antes de que Terraform rechace el nombre de espacio de trabajo no válido. Esto puede crear, eliminar o reutilizar rutas escribibles con los privilegios del proceso de Atlantis, causando pérdida de integridad o denegación de servicio. Este problema está solucionado en la versión 0.45.0."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"runatlantis","product":"atlantis","versions":[{"version":">= 0.19.8, < 0.45.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-25T17:04:45.481426Z","id":"CVE-2026-64679","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-22"},{"lang":"en","value":"CWE-73"}]}],"references":[{"url":"https://github.com/runatlantis/atlantis/commit/ea4e4ceebf8b387d015fff7ed8a7fcca33279afe","source":"security-advisories@github.com"},{"url":"https://github.com/runatlantis/atlantis/pull/6254","source":"security-advisories@github.com"},{"url":"https://github.com/runatlantis/atlantis/releases/tag/v0.45.0","source":"security-advisories@github.com"},{"url":"https://github.com/runatlantis/atlantis/security/advisories/GHSA-26w5-6g95-gj28","source":"security-advisories@github.com"},{"url":"https://github.com/runatlantis/atlantis/security/advisories/GHSA-26w5-6g95-gj28","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}