Answer in brief
CVE-2026-48594 records a High severity (CVSS 8.2) vulnerability in Decompression bomb in Tesla.Middleware.DecompressResponse and Tesla.Middleware.Compression. 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 8.2. 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 | >=0.6.0,<1.18.3 | 1.18.3 |
| elixir-tesla/elixir-tesla/teslageneric | >=5bd90bb5cf0d15e375edc2a66fa322292940fce2 <340f75b5d191dc747ef7ac6365bd002d1cd55a9d | 340f75b5d191dc747ef7ac6365bd002d1cd55a9d |
| elixir-tesla/teslageneric | >=0.6.0 <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 Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-tesla tesla allows a denial of service via decompression bomb in HTTP response bodies. When Tesla.Middleware.DecompressResponse or Tesla.Middleware.Compression is included in a Tesla middleware pipeline, HTTP response bodies are decompressed eagerly with no size limit. The decompress_body/2 function in lib/tesla/middleware/compression.ex passes the entire response body to :zlib.gunzip/1 or :zlib.unzip/1 without any cap on the output size. Additionally, compression_algorithms/1 splits the content-encoding header on commas and decompress_body/2 recurses once per token, applying a decompression pass on each iteration. A server advertising content-encoding: gzip, gzip, gzip, gzip causes four recursive decompression passes, yielding exponential amplification: each gzip layer can expand its input roughly 1000x, so a payload of a few hundred bytes on the wire inflates to gigabytes of BEAM heap, exhausting memory and crashing or freezing the calling process. This issue affects tesla: from 0.6.0 before 1.18.3.
Quoted source text, attributed separately from HOL analysis.