{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-48596", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-05-22T09:36:56.834Z", "datePublished": "2026-06-02T19:09:31.615Z", "dateUpdated": "2026-06-02T19:12:34.508Z"}, "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':add_content_type_param/2"}, {"name": "'Elixir.Tesla.Multipart':headers/1"}], "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':add_content_type_param/2"}, {"name": "'Elixir.Tesla.Multipart':headers/1"}], "repo": "https://github.com/elixir-tesla/tesla.git", "vendor": "elixir-tesla", "versions": [{"lessThan": "23601edac5d22ba9407b427967b5bdbda201aec2", "status": "affected", "version": "6ebfdb9abe9c6f119408045b933d82462decd351", "versionType": "git"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "The application must pass untrusted input into <tt>Tesla.Multipart.add_content_type_param/2</tt>."}], "value": "The application must pass untrusted input into Tesla.Multipart.add_content_type_param/2."}], "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 Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') vulnerability in elixir-tesla tesla allows HTTP header injection via <tt>Tesla.Multipart.add_content_type_param/2</tt>.<p><tt>Tesla.Multipart.add_content_type_param/2</tt> appends caller-supplied strings to the multipart <tt>content_type_params</tt> list without validating for CR (<tt>\\r</tt>) or LF (<tt>\\n</tt>) characters. <tt>Tesla.Multipart.headers/1</tt> then joins these params verbatim with <tt>\"; \"</tt> to construct the outgoing <tt>Content-Type</tt> header value. A param containing <tt>\\r\\n</tt> 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 <tt>add_content_type_param/2</tt> is affected.</p><p>This issue affects tesla: from 0.8.0 before 1.18.3.</p>"}], "value": "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.\n\nTesla.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.\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-113", "description": "CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-06-02T19:12:34.508Z"}, "references": [{"tags": ["vendor-advisory", "related"], "url": "https://github.com/elixir-tesla/tesla/security/advisories/GHSA-q7jx-v53g-848w"}, {"tags": ["related"], "url": "https://cna.erlef.org/cves/CVE-2026-48596.html"}, {"tags": ["related"], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48596"}, {"tags": ["patch"], "url": "https://github.com/elixir-tesla/tesla/commit/23601edac5d22ba9407b427967b5bdbda201aec2"}], "source": {"discovery": "EXTERNAL"}, "title": "CRLF injection in Tesla.Multipart.add_content_type_param/2 allows HTTP header injection", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Validate content-type parameter strings before passing them to <tt>Tesla.Multipart.add_content_type_param/2</tt>, rejecting any value that contains <tt>\\r</tt> or <tt>\\n</tt>."}], "value": "Validate content-type parameter strings before passing them to Tesla.Multipart.add_content_type_param/2, rejecting any value that contains \\r or \\n."}], "x_generator": {"engine": "cvelib 1.8.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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.\n\nTesla.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.\n\nThis issue affects tesla: from 0.8.0 before 1.18.3."}], "id": "CVE-2026-48596", "lastModified": "2026-06-02T20:16:38.557", "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": "2026-06-02T20:16:38.557", "references": [{"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://cna.erlef.org/cves/CVE-2026-48596.html"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/elixir-tesla/tesla/commit/23601edac5d22ba9407b427967b5bdbda201aec2"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/elixir-tesla/tesla/security/advisories/GHSA-q7jx-v53g-848w"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48596"}], "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-113"}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}

{}

{}