CVE-2026-48598

Source
https://cve.org/CVERecord?id=CVE-2026-48598
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-48598.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-48598
Aliases
Published
2026-06-02T19:08:19.921Z
Modified
2026-06-18T03:57:33.348946202Z
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 disposition parameters allows multipart part header injection
Details

Improper Encoding or Escaping of Output vulnerability in elixir-tesla tesla allows multipart part header injection via unescaped Content-Disposition parameter values.

Tesla.Multipart.partheadersfordisposition/1 interpolates each disposition parameter as #{k}="#{v}" with no validation of CR (\r), LF (\n), or double-quote characters. The values come verbatim from the caller via Tesla.Multipart.addfield/4 (the name parameter), Tesla.Multipart.addfile/3, and Tesla.Multipart.addfilecontent/4 (both the filename parameter and other disposition opts). A " in the value closes the quoted parameter early; a \r\n ends the Content-Disposition header line and starts a new part header (such as a forged Content-Type), or, after a second \r\n, ends the entire part header block and prepends bytes to the part body. The default-filename path in addfile/3 derives the filename via Path.basename/1, which does not strip CR or LF, so any application forwarding a partially-attacker-controlled file path inherits the same issue.

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-2026-48598.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "6ebfdb9abe9c6f119408045b933d82462decd351"
                },
                {
                    "fixed": "bb1a2c3da2775924d96e3db8e315dcc4d5d2246e"
                }
            ]
        }
    ],
    "cwe_ids": [
        "CWE-116"
    ],
    "cna_assigner": "EEF"
}
References

Affected packages

Git / github.com/elixir-tesla/tesla

Affected ranges

Type
GIT
Repo
https://github.com/elixir-tesla/tesla
Events
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-2026-48598.json"