EUVD-2026-33060

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33., Portainer proxies requests to Kubernetes clusters through a middleware layer...

CVE-2026-44882 Portainer: Kubernetes middleware continues after token validation failure, bypassing endpoint authorization

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33., Portainer proxies requests to Kubernetes clusters through a middleware layer...

CVE-2026-44882

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33., Portainer proxies requests to Kubernetes clusters through a middleware layer...

CVE-2026-44882

Portainer’s Kubernetes middleware (kubeClientMiddleware) is affected by CVE-2026-44882. The issue occurs in Portainer CE/EE from 2.33.0 up to before 2.33.8, where security.RetrieveTokenData can return an error and the middleware writes a 403 without returning, allowing execution to continue with ...

EUVD-2026-33059

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, 2.39.2, and 2.41.0, Portainer's authentication middleware accepts JWT bearer tokens passed...

CVE-2026-44883 Portainer: JWT accepted in URL query leaks tokens to logs and referers

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, 2.39.2, and 2.41.0, Portainer's authentication middleware accepts JWT bearer tokens passed...

CVE-2026-44883

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, 2.39.2, and 2.41.0, Portainer's authentication middleware accepts JWT bearer tokens passed...

CVE-2026-44883

Summary: Portainer Community Edition versions 2.33.0–2.33.7.x, 2.39.0–2.39.1.x, and 2.40.x prior to 2.41.0 expose JWTs via the ?token= URL query parameter on any authenticated API endpoint, in addition to the Authorization header. Root cause: The authentication middleware accepted the token from ...

CVE-2026-44883 Portainer: JWT accepted in URL query leaks tokens to logs and referers

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, 2.39.2, and 2.41.0, Portainer's authentication middleware accepts JWT bearer tokens passed...

CVE-2026-44883 Portainer: JWT accepted in URL query leaks tokens to logs and referers

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, 2.39.2, and 2.41.0, Portainer's authentication middleware accepts JWT bearer tokens passed...

CVE-2026-44884 Portainer: Missing authorization on custom template file endpoint exposes template content

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8 and 2.39.1, a missing authorization vulnerability in the Custom Template file endpoint GET...

CVE-2026-44884

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8 and 2.39.1, a missing authorization vulnerability in the Custom Template file endpoint GET...

CVE-2026-44884 Portainer: Missing authorization on custom template file endpoint exposes template content

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8 and 2.39.1, a missing authorization vulnerability in the Custom Template file endpoint GET...

EUVD-2026-33058

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8 and 2.39.1, a missing authorization vulnerability in the Custom Template file endpoint GET...

CVE-2026-44884

Portainer CVE-2026-44884 involves a missing authorization check on the Custom Template file endpoint (GET /api/custom_templates/{id}/file). From 2.33.0 up to 2.33.8 and 2.39.0 up to 2.39.1, any authenticated user could read the file content of any custom template by enumerating numeric IDs, poten...

CVE-2026-44884 Portainer: Missing authorization on custom template file endpoint exposes template content

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8 and 2.39.1, a missing authorization vulnerability in the Custom Template file endpoint GET...

CVE-2026-44885 Portainer: Path traversal in backup archive extraction allows arbitrary file write

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, Portainer's backup restore feature accepts a .tar.gz archive and extracts it to a target...

CVE-2026-44885 Portainer: Path traversal in backup archive extraction allows arbitrary file write

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, Portainer's backup restore feature accepts a .tar.gz archive and extracts it to a target...

CVE-2026-44885

Portainer Portainer Community Edition is affected by a directory traversal in the backup archive extraction path. The vulnerable code path is ExtractTarGz in api/archive/targz.go, which builds output paths via filepath.Clean(filepath.Join(outputDirPath, header.Name)). A tar entry like ../../etc/c...

CVE-2026-44885

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, Portainer's backup restore feature accepts a .tar.gz archive and extracts it to a target...