The chart below shows the most common weaknesses found in vulnerabilities across the Erlang ecosystem. Understanding which weakness types recur most often helps library authors and application developers focus their security efforts where they matter most.

Each CVE is mapped to its CWE (Common Weakness Enumeration) using the MITRE CWE hierarchy. A slice's count includes every CVE reachable anywhere below it in the hierarchy, not just CVEs assigned that exact CWE — click a slice or legend row to drill into its direct children and see the same breakdown one level down.

Unintended Proxy or Intermediary ('Confused Deputy') CWE-441 CWE-441 at MITRE

The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor.

CVEs

CVEs for Unintended Proxy or Intermediary ('Confused Deputy') CWE-441

Summary Publication CVE ID Published
Server-side request forgery in Boruta OAuth request_uri and OpenID jwks_uri fetching CVE-2026-54885 2026-07-30
ftp client PASV response IP not validated against control peer, enabling SSRF and FTP bounce attacks
pkg:otp/inets
pkg:otp/ftp
CVE-2026-48858 2026-06-10
SSRF allowlist bypass via percent-encoded host in hackney CVE-2026-47076 2026-05-25
3 CVEs