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CVE-2026-48596— CRLF injection in Tesla.Multipart.add_content_type_param/2 allows HTTP header injection

Quick assessment

Affected
elixir-tesla tesla
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tesla（特斯拉）是美国特斯拉（Tesla）公司的一款电动汽车。 tesla 0.8.0版本至1.18.3之前版本存在安全漏洞，该漏洞源于Tesla.Multipart.add_content_type_param/2未验证CR或LF字符，可能导致HTTP头注入。

CVSS 2.1 · Low EPSS 0.35% · P26

Possible ATT&CK Techniques 1 AI

T1105 · Ingress Tool Transfer

Affected Version Matrix 2

VendorProduct Version RangeStatus
elixir-tesla tesla 0.8.0< 1.18.3 affected
6ebfdb9abe9c6f119408045b933d82462decd351< 23601edac5d22ba9407b427967b5bdbda201aec2 affected
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I. Basic Information for CVE-2026-48596

Vulnerability Information
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Vulnerability Title
CRLF injection in Tesla.Multipart.add_content_type_param/2 allows HTTP header injection
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
HTTP头部中CRLF序列转义处理不恰当(HTTP响应分割)
Source: CVE Program / CVE List V5
Vulnerability Title
Tesla 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tesla（特斯拉）是美国特斯拉（Tesla）公司的一款电动汽车。 tesla 0.8.0版本至1.18.3之前版本存在安全漏洞，该漏洞源于Tesla.Multipart.add_content_type_param/2未验证CR或LF字符，可能导致HTTP头注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
elixir-tesla tesla 0.8.0 ~ 1.18.3 cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*
elixir-tesla tesla 6ebfdb9abe9c6f119408045b933d82462decd351 ~ 23601edac5d22ba9407b427967b5bdbda201aec2 cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-48596

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III. Intelligence Information for CVE-2026-48596

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Patches & Fixes for CVE-2026-48596 (1)

Vendor Advisories for CVE-2026-48596 (3)

Same Patch Batch · elixir-tesla · 2026-06-02 · 5 CVEs total

CVE-2026-48594 8.2 HIGH Decompression bomb in Tesla.Middleware.DecompressResponse and Tesla.Middleware.Compression
CVE-2026-48595 8.2 HIGH Authorization header leaks to third-party origin on cross-origin redirect in Tesla.Middlew
CVE-2026-48597 8.2 HIGH Atom table exhaustion via untrusted URL scheme in Tesla.Adapter.Mint
CVE-2026-48598 2.1 LOW CRLF injection in Tesla.Multipart disposition parameters allows multipart part header inje

IV. Related Vulnerabilities

Same product: tesla
Same vendor: elixir-tesla
Same weakness: CWE-113

V. Comments for CVE-2026-48596

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