CVE-2026-55454

Description

Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 2.1, the bundled Caddy reverse-proxy's admin API — which has no authentication by default — is bound on 0.0.0.0:2019 inside the container. While this listener is not directly published to the host by docker-compose.yml, it is reachable from the Appsmith server process itself or a SSRF vulnerability. An authenticated low-privileged user can therefore drive the SSRF to issue POST /load (or any other admin-API call) against http://0.0.0.0:2019/, fully replacing the live Caddy configuration and taking over the reverse proxy. This vulnerability is fixed in 2.1.

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Produits concernés

• appsmithorg appsmith
• Appsmith appsmith

Scores CVSS

Faiblesses (CWE)

• CWE-749
• CWE-1188

Références

• https://github.com/appsmithorg/appsmith/security/advisories/GHSA-8jvv-gwqg-6vjc ExploitThird Party Advisory
• https://github.com/appsmithorg/appsmith/security/advisories/GHSA-8jvv-gwqg-6vjc ExploitThird Party Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories