{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-48598", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-05-22T09:36:56.834Z", "datePublished": "2026-06-02T19:08:19.921Z", "dateUpdated": "2026-06-02T19:12:18.502Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Tesla.Multipart'"], "packageName": "tesla", "packageURL": "pkg:hex/tesla", "product": "tesla", "programFiles": ["lib/tesla/multipart.ex"], "programRoutines": [{"name": "'Elixir.Tesla.Multipart':part_headers_for_disposition/1"}, {"name": "'Elixir.Tesla.Multipart':add_field/4"}, {"name": "'Elixir.Tesla.Multipart':add_file/3"}, {"name": "'Elixir.Tesla.Multipart':add_file_content/4"}], "repo": "https://github.com/elixir-tesla/tesla", "vendor": "elixir-tesla", "versions": [{"lessThan": "1.18.3", "status": "affected", "version": "0.8.0", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Tesla.Multipart'"], "packageName": "elixir-tesla/tesla", "packageURL": "pkg:github/elixir-tesla/tesla", "product": "tesla", "programFiles": ["lib/tesla/multipart.ex"], "programRoutines": [{"name": "'Elixir.Tesla.Multipart':part_headers_for_disposition/1"}, {"name": "'Elixir.Tesla.Multipart':add_field/4"}, {"name": "'Elixir.Tesla.Multipart':add_file/3"}, {"name": "'Elixir.Tesla.Multipart':add_file_content/4"}], "repo": "https://github.com/elixir-tesla/tesla.git", "vendor": "elixir-tesla", "versions": [{"lessThan": "bb1a2c3da2775924d96e3db8e315dcc4d5d2246e", "status": "affected", "version": "6ebfdb9abe9c6f119408045b933d82462decd351", "versionType": "git"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "The application must pass untrusted input into a disposition parameter of <tt>Tesla.Multipart.add_field/4</tt>, <tt>Tesla.Multipart.add_file/3</tt>, or <tt>Tesla.Multipart.add_file_content/4</tt>."}], "value": "The application must pass untrusted input into a disposition parameter of Tesla.Multipart.add_field/4, Tesla.Multipart.add_file/3, or Tesla.Multipart.add_file_content/4."}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.18.3", "versionStartIncluding": "0.8.0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "finder", "value": "Peter Ullrich"}, {"lang": "en", "type": "remediation developer", "value": "Yordis Prieto"}, {"lang": "en", "type": "analyst", "value": "Jonatan M\u00e4nnchen"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Improper Encoding or Escaping of Output vulnerability in elixir-tesla tesla allows multipart part header injection via unescaped <tt>Content-Disposition</tt> parameter values.<p><tt>Tesla.Multipart.part_headers_for_disposition/1</tt> interpolates each disposition parameter as <tt>#{k}=\"#{v}\"</tt> with no validation of CR (<tt>\\r</tt>), LF (<tt>\\n</tt>), or double-quote characters. The values come verbatim from the caller via <tt>Tesla.Multipart.add_field/4</tt> (the <tt>name</tt> parameter), <tt>Tesla.Multipart.add_file/3</tt>, and <tt>Tesla.Multipart.add_file_content/4</tt> (both the <tt>filename</tt> parameter and other disposition opts). A <tt>\"</tt> in the value closes the quoted parameter early; a <tt>\\r\\n</tt> ends the <tt>Content-Disposition</tt> header line and starts a new part header (such as a forged <tt>Content-Type</tt>), or, after a second <tt>\\r\\n</tt>, ends the entire part header block and prepends bytes to the part body. The default-filename path in <tt>add_file/3</tt> derives the filename via <tt>Path.basename/1</tt>, which does not strip CR or LF, so any application forwarding a partially-attacker-controlled file path inherits the same issue.</p><p>This issue affects tesla: from 0.8.0 before 1.18.3.</p>"}], "value": "Improper Encoding or Escaping of Output vulnerability in elixir-tesla tesla allows multipart part header injection via unescaped Content-Disposition parameter values.\n\nTesla.Multipart.part_headers_for_disposition/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.add_field/4 (the name parameter), Tesla.Multipart.add_file/3, and Tesla.Multipart.add_file_content/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 add_file/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.\n\nThis issue affects tesla: from 0.8.0 before 1.18.3."}], "impacts": [{"capecId": "CAPEC-105", "descriptions": [{"lang": "en", "value": "CAPEC-105 HTTP Request Splitting"}]}], "metrics": [{"cvssV4_0": {"attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "baseScore": 2.1, "baseSeverity": "LOW", "privilegesRequired": "NONE", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "vectorString": "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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-116", "description": "CWE-116 Improper Encoding or Escaping of Output", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-06-02T19:12:18.502Z"}, "references": [{"tags": ["vendor-advisory", "related"], "url": "https://github.com/elixir-tesla/tesla/security/advisories/GHSA-28jh-g32x-v9v4"}, {"tags": ["related"], "url": "https://cna.erlef.org/cves/CVE-2026-48598.html"}, {"tags": ["related"], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48598"}, {"tags": ["patch"], "url": "https://github.com/elixir-tesla/tesla/commit/bb1a2c3da2775924d96e3db8e315dcc4d5d2246e"}], "source": {"discovery": "EXTERNAL"}, "title": "CRLF injection in Tesla.Multipart disposition parameters allows multipart part header injection", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Validate disposition parameter values before passing them to <tt>Tesla.Multipart.add_field/4</tt>, <tt>Tesla.Multipart.add_file/3</tt>, or <tt>Tesla.Multipart.add_file_content/4</tt>, rejecting any value that contains <tt>\\r</tt>, <tt>\\n</tt>, or <tt>\"</tt>."}], "value": "Validate disposition parameter values before passing them to Tesla.Multipart.add_field/4, Tesla.Multipart.add_file/3, or Tesla.Multipart.add_file_content/4, rejecting any value that contains \\r, \\n, or \"."}], "x_generator": {"engine": "cvelib 1.8.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Encoding or Escaping of Output vulnerability in elixir-tesla tesla allows multipart part header injection via unescaped Content-Disposition parameter values.\n\nTesla.Multipart.part_headers_for_disposition/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.add_field/4 (the name parameter), Tesla.Multipart.add_file/3, and Tesla.Multipart.add_file_content/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 add_file/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.\n\nThis issue affects tesla: from 0.8.0 before 1.18.3."}], "id": "CVE-2026-48598", "lastModified": "2026-06-02T20:16:38.847", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}, "published": "2026-06-02T20:16:38.847", "references": [{"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://cna.erlef.org/cves/CVE-2026-48598.html"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/elixir-tesla/tesla/commit/bb1a2c3da2775924d96e3db8e315dcc4d5d2246e"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/elixir-tesla/tesla/security/advisories/GHSA-28jh-g32x-v9v4"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48598"}], "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-116"}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}

{}