Analysis
Common Weaknesses
The most common CWE weakness classes across Erlang ecosystem CVEs
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.
Improper Neutralization of CRLF Sequences ('CRLF Injection') CWE-93 CWE-93 at MITRE
The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.
CVEs
CVEs for Improper Neutralization of CRLF Sequences ('CRLF Injection') CWE-93
| Summary | Publication | CVE ID | Published |
|---|---|---|---|
| HTTP Response Splitting via Non-VCHAR Bytes in cow_http_struct_hd:escape_string/2 | CVE-2026-43966 | 2026-06-08 | |
| Multipart form-data header injection in Req via unescaped name/filename/content_type | CVE-2026-49756 | 2026-06-08 | |
| CRLF injection in Tesla.Multipart.add_content_type_param/2 allows HTTP header injection | CVE-2026-48596 | 2026-06-02 | |
| CRLF injection in HTTP/1 request line via unvalidated method in Mint | CVE-2026-48861 | 2026-06-02 | |
| CRLF injection in WebSocket upgrade request in hackney | CVE-2026-47072 | 2026-05-25 | |
| CR/LF injection in query parameter in hackney | CVE-2026-47075 | 2026-05-25 | |
| CRLF injection in cookie domain/path options in hackney | CVE-2026-47069 | 2026-05-25 | |
| CR Injection in SSE Encoder Enables Event Splitting via cow_sse:event/1 | CVE-2026-43968 | 2026-05-11 | |
| Cookie Request Header Injection via Unvalidated Encoder in cow_cookie:cookie/1 | CVE-2026-43969 | 2026-05-11 |