CVE-2026-48596

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Source
https://cve.org/CVERecord?id=CVE-2026-48596
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-48596.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-48596
Aliases
Published
2026-06-02T19:09:31.615Z
Modified
2026-06-18T03:55:46.501094280Z
Severity
  • 2.1 (Low) CVSS_V4 - 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 CVSS Calculator
Summary
CRLF injection in Tesla.Multipart.add_content_type_param/2 allows HTTP header injection
Details

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') vulnerability in elixir-tesla tesla allows HTTP header injection via Tesla.Multipart.addcontenttype_param/2.

Tesla.Multipart.addcontenttypeparam/2 appends caller-supplied strings to the multipart contenttypeparams 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 addcontenttypeparam/2 is affected.

This issue affects tesla: from 0.8.0 before 1.18.3.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48596.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "6ebfdb9abe9c6f119408045b933d82462decd351"
                },
                {
                    "fixed": "23601edac5d22ba9407b427967b5bdbda201aec2"
                }
            ]
        }
    ],
    "cwe_ids": [
        "CWE-113"
    ],
    "cna_assigner": "EEF"
}
References

Affected packages

Git / github.com/elixir-tesla/tesla

Affected ranges

Type
GIT
Repo
https://github.com/elixir-tesla/tesla
Events
Introduced
fed422b5ec981cc6237b6a2c1be52e4564461bad
Fixed
2eb7a78948f9c3b18509bf28bdc729e07f46e0dc
Fixed
23601edac5d22ba9407b427967b5bdbda201aec2
Database specific 
{
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0.8.0"
        },
        {
            "fixed": "1.18.3"
        }
    ]
}

Affected versions

v.*
v.1.3.2
v0.*
v0.10.0
v0.8.0
v0.9.0
v1.*
v1.0.0-beta.1
v1.1.0
v1.10.0
v1.10.1
v1.10.2
v1.10.3
v1.11.0
v1.11.1
v1.11.2
v1.12.0
v1.12.1
v1.12.2
v1.12.3
v1.13.0
v1.13.1
v1.13.2
v1.14.0
v1.14.1
v1.14.2
v1.14.3
v1.15.0
v1.15.1
v1.15.2
v1.15.3
v1.16.0
v1.17.0
v1.18.0
v1.18.1
v1.18.2
v1.2.0
v1.2.1
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.5.0
v1.5.1
v1.6.0
v1.6.1
v1.7.0
v1.8.0
v1.9.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-48596.json"