CVE-2026-48596

Published: Giu 02, 2026 Last Modified: Giu 02, 2026
ExploitDB:
Other exploit source:
Google Dorks:
LOW 2,1
Source: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
Attack Vector: local
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

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.

113

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

Incomplete
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Access Control
Potential Impacts:
Modify Application Data Gain Privileges Or Assume Identity
Applicable Platforms
Technologies: Web Based, Web Server
View CWE Details
https://cna.erlef.org/cves/CVE-2026-48596.html
https://cna.erlef.org/cves/CVE-2026-48596.html
https://github.com/elixir-tesla/tesla/commit/23601edac5d22b…
https://github.com/elixir-tesla/tesla/commit/23601edac5d22ba9407b427967b5bdbda2…
https://github.com/elixir-tesla/tesla/security/advisories/G…
https://github.com/elixir-tesla/tesla/security/advisories/GHSA-q7jx-v53g-848w
https://osv.dev/vulnerability/EEF-CVE-2026-48596
https://osv.dev/vulnerability/EEF-CVE-2026-48596