Answer in brief
CVE-2026-48596 records a Low severity (CVSS 2.1) vulnerability in CRLF injection in Tesla.Multipart.add_content_type_param/2 allows HTTP header injection. The current sources do not mark it as known exploited. The current feed maps tesla (erlang), elixir-tesla/elixir-tesla/tesla (generic), elixir-tesla/tesla (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 2.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps tesla (erlang), elixir-tesla/elixir-tesla/tesla (generic), elixir-tesla/tesla (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| teslaerlang | >=0.8.0,<1.18.3 | 1.18.3 |
| elixir-tesla/elixir-tesla/teslageneric | >=6ebfdb9abe9c6f119408045b933d82462decd351 <23601edac5d22ba9407b427967b5bdbda201aec2 | 23601edac5d22ba9407b427967b5bdbda201aec2 |
| elixir-tesla/teslageneric | >=0.8.0 <1.18.3 | 1.18.3 |
Published upstream
Jun 2, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 10, 2026
Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') vulnerability in elixir-tesla tesla allows HTTP header injection via Tesla.Multipart.add_content_type_param/2. Tesla.Multipart.add_content_type_param/2 appends caller-supplied strings to the multipart content_type_params list without validating for CR (\r) or LF (\n) characters. Tesla.Multipart.headers/1 then joins these params verbatim with "; " to construct the outgoing Content-Type header value. A param containing \r\n splits the header line, allowing arbitrary headers to be injected into the outbound HTTP request. Any application that forwards untrusted input (such as a user-supplied charset or parameter string) into add_content_type_param/2 is affected. This issue affects tesla: from 0.8.0 before 1.18.3.
Quoted source text, attributed separately from HOL analysis.