CVE-2026-42794

{"id": "CVE-2026-42794", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-42794", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-08T16:07:51.313563Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 2.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "affectedData": [{"cpes": ["cpe:2.3:a:absinthe-graphql:absinthe_plug:*:*:*:*:*:*:*:*"], "repo": "https://github.com/absinthe-graphql/absinthe_plug", "vendor": "absinthe-graphql", "modules": ["'Elixir.Absinthe.Plug.GraphiQL'"], "product": "absinthe_plug", "versions": [{"status": "affected", "version": "1.2.0", "lessThan": "1.5.10", "versionType": "semver"}], "packageURL": "pkg:hex/absinthe_plug", "packageName": "absinthe_plug", "programFiles": ["lib/absinthe/plug/graphiql.ex"], "collectionURL": "https://repo.hex.pm", "defaultStatus": "unaffected", "programRoutines": [{"name": "'Elixir.Absinthe.Plug.GraphiQL':js_escape/1"}]}, {"cpes": ["cpe:2.3:a:absinthe-graphql:absinthe_plug:*:*:*:*:*:*:*:*"], "repo": "https://github.com/absinthe-graphql/absinthe_plug", "vendor": "absinthe-graphql", "modules": ["'Elixir.Absinthe.Plug.GraphiQL'"], "product": "absinthe_plug", "versions": [{"status": "affected", "version": "26241817cb4b9be4de3f5972c5fba3d36de3d713", "lessThan": "23a0d5658d32420086711adf4ce8f05febb09963", "versionType": "git"}], "packageURL": "pkg:github/absinthe-graphql/absinthe_plug", "packageName": "absinthe-graphql/absinthe_plug", "programFiles": ["lib/absinthe/plug/graphiql.ex"], "collectionURL": "https://github.com", "defaultStatus": "unaffected", "programRoutines": [{"name": "'Elixir.Absinthe.Plug.GraphiQL':js_escape/1"}]}]}], "published": "2026-05-08T16:16:12.750", "references": [{"url": "https://cna.erlef.org/cves/CVE-2026-42794.html", "tags": ["Third Party Advisory"], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://github.com/absinthe-graphql/absinthe_plug/commit/23a0d5658d32420086711adf4ce8f05febb09963", "tags": ["Patch"], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://github.com/absinthe-graphql/absinthe_plug/issues/275", "tags": ["Issue Tracking"], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://osv.dev/vulnerability/EEF-CVE-2026-42794", "tags": ["Third Party Advisory"], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://github.com/absinthe-graphql/absinthe_plug/issues/275", "tags": ["Issue Tracking"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation (XSS) vulnerability in absinthe-graphql absinthe_plug allows reflected cross-site scripting via the GraphiQL interface.\n\n'Elixir.Absinthe.Plug.GraphiQL':js_escape/1 in lib/absinthe/plug/graphiql.ex escapes single quotes and newlines in the query GET parameter before embedding it in an inline JavaScript string, but does not escape backslashes. An attacker can bypass the escaping by prefixing a quote with a backslash (e.g. \\'), breaking out of the string context and executing arbitrary JavaScript in the victim's browser.\n\nThis issue affects absinthe_plug: from 1.2.0 before 1.5.10."}, {"lang": "es", "value": "Vulnerabilidad de Neutralizaci\u00f3n Incorrecta de la Entrada Durante la Generaci\u00f3n de P\u00e1ginas Web (XSS) en absinthe-graphql absinthe_plug permite cross-site scripting reflejado a trav\u00e9s de la interfaz GraphiQL.\n\n\u2019Elixir.Absinthe.Plug.GraphiQL\u2019:js_escape/1 en lib/absinthe/plug/graphiql.ex escapa comillas simples y saltos de l\u00ednea en el par\u00e1metro GET de la consulta antes de incrustarlo en una cadena JavaScript en l\u00ednea, pero no escapa barras invertidas. Un atacante puede eludir el escape prefijando una comilla con una barra invertida (ej. \\\u2019), saliendo del contexto de la cadena y ejecutando JavaScript arbitrario en el navegador de la v\u00edctima.\n\nEste problema afecta a absinthe_plug: desde 1.2.0."}], "lastModified": "2026-10-26T18:10:00.173", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:absinthe-graphql:absinthe.plug:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EF9F187-A4F5-4D86-A3BF-7774F698CFED", "versionEndExcluding": "1.5.10", "versionStartIncluding": "1.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}