CVE-2026-48594
- Source
- https://cve.org/CVERecord?id=CVE-2026-48594
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-48594.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-48594
- Aliases
-
- EEF-CVE-2026-48594
- GHSA-mc85-72gr-vm9f
- Published
- 2026-06-02T19:08:49.596Z
- Modified
- 2026-06-18T03:55:03.366600120Z
- Severity
-
- 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Decompression bomb in Tesla.Middleware.DecompressResponse and Tesla.Middleware.Compression
- Details
-
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 decompressbody/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, compressionalgorithms/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.
- Database specific
{ "cwe_ids": [ "CWE-409" ], "cna_assigner": "EEF", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48594.json", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "5bd90bb5cf0d15e375edc2a66fa322292940fce2" }, { "fixed": "340f75b5d191dc747ef7ac6365bd002d1cd55a9d" } ], "source": "AFFECTED_FIELD" } ] }- References
-
- https://cna.erlef.org/cves/CVE-2026-48594.html
- https://github.com
- https://osv.dev/vulnerability/EEF-CVE-2026-48594
- https://repo.hex.pm
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48594.json
- https://github.com/elixir-tesla/tesla/security/advisories/GHSA-mc85-72gr-vm9f
- https://nvd.nist.gov/vuln/detail/CVE-2026-48594
- https://github.com/elixir-tesla/tesla/commit/340f75b5d191dc747ef7ac6365bd002d1cd55a9d
- https://github.com/elixir-tesla/tesla
- https://github.com/elixir-tesla/tesla.git