Tesla: Authorization header leaks on cross-origin redirect via case-sensitive filtering

Summary Tesla.Middleware.FollowRedirects is meant to strip the Authorization header when following a cross-origin redirect, but performs the check with a case-sensitive comparison against the lowercase string "authorization". Because Tesla preserves header keys exactly as supplied by the caller,...

GHSA-9M9W-GXF7-RH8M Tesla: Authorization header leaks on cross-origin redirect via case-sensitive filtering

Summary Tesla.Middleware.FollowRedirects is meant to strip the Authorization header when following a cross-origin redirect, but performs the check with a case-sensitive comparison against the lowercase string "authorization". Because Tesla preserves header keys exactly as supplied by the caller,...

GHSA-MC85-72GR-VM9F Tesla has decompression bomb on response body

Summary Any Tesla client pipeline that includes Tesla.Middleware.DecompressResponse or Tesla.Middleware.Compression eagerly decompresses HTTP response bodies with no size limit. A server under attacker control or reached via a redirect can return a tiny gzip-encoded payload that expands into...

CVE-2026-48594 Decompression bomb in Tesla.Middleware.DecompressResponse and Tesla.Middleware.Compression

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...

CVE-2026-48594

The CVE-2026-48594 issue affects elixir-tesla/tesla: when Tesla.Middleware.DecompressResponse or Tesla.Middleware.Compression is used, HTTP responses are decompressed eagerly without a size cap. The decompress_body/2 path passes the full body to :zlib.gunzip/1 or :zlib.unzip/1, and compression_al...

CVE-2026-48594 Decompression bomb in Tesla.Middleware.DecompressResponse and Tesla.Middleware.Compression

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...

EEF-CVE-2026-48594 Decompression bomb in Tesla.Middleware.DecompressResponse and Tesla.Middleware.Compression

Summary 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...

CVE-2026-48595 Authorization header leaks to third-party origin on cross-origin redirect in Tesla.Middleware.FollowRedirects

Improper Handling of Case Sensitivity vulnerability in elixir-tesla tesla allows credential leakage to a third-party origin on cross-origin redirects. Tesla.Middleware.FollowRedirects strips security-sensitive headers on cross-origin redirects using a case-sensitive string comparison against a...

EEF-CVE-2026-48595 Authorization header leaks to third-party origin on cross-origin redirect in Tesla.Middleware.FollowRedirects

Summary Improper Handling of Case Sensitivity vulnerability in elixir-tesla tesla allows credential leakage to a third-party origin on cross-origin redirects. Tesla.Middleware.FollowRedirects strips security-sensitive headers on cross-origin redirects using a case-sensitive string comparison...

CVE-2026-48595

The CVE-2026-48595 entry describes an Authorization header leakage in Tesla’s Elixir Tesla middleware (FollowRedirects) due to a case-sensitive comparison against a lowercase filter list for headers like Authorization/host. HTTP header names are case-insensitive, but Tesla preserves header keys a...

PT-2026-45837

Name of the Vulnerable Software and Affected Versions tesla versions 0.6.0 through 1.18.2 Description An improper handling of highly compressed data allows a denial of service via a decompression bomb in HTTP response bodies. When Tesla.Middleware.DecompressResponse or Tesla.Middleware.Compressio...