CVE-2026-14650

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In Issue #117 with similar structure the project maintainer explains: \"DoS vulnerabilities are generally fine in Sass compilers -- they are trivially possible with recursive functions, infinite loops, nested mixins, etc. The description here is wrong. Compile time is not expected to be linear relative to the input, and the @extend algorithm is definitionally exponential.\""}, {"lang": "es", "value": "Se ha encontrado una vulnerabilidad en connorskees grass hasta la versi\u00f3n 0.13.4. El elemento afectado es la funci\u00f3n grass_compiler::raw_to_parse_error del componente Gestor de Caracteres UTF-8. La ejecuci\u00f3n de una manipulaci\u00f3n puede conducir a una denegaci\u00f3n de servicio. El ataque est\u00e1 restringido a la ejecuci\u00f3n local. El exploit ha sido publicado y puede ser utilizado. En el Issue #117 con una estructura similar, el mantenedor del proyecto explica: \u2019Las vulnerabilidades DoS generalmente no son un problema grave en los compiladores Sass -- son trivialmente posibles con funciones recursivas, bucles infinitos, mixins anidados, etc. La descripci\u00f3n aqu\u00ed es incorrecta. No se espera que el tiempo de compilaci\u00f3n sea lineal en relaci\u00f3n con la entrada, y el algoritmo @extend es exponencial por definici\u00f3n.\u2019"}], "id": "CVE-2026-14650", "lastModified": "2026-10-25T15:10:00.147", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 1.7, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.1, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 1.9, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "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": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-14650", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-06T16:36:16.479783Z", "version": "2.0.3"}}]}, "published": "2026-07-04T20:16:55.117", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/connorskees/grass/"}, {"source": "cna@vuldb.com", "url": "https://github.com/connorskees/grass/issues/116"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/cve/CVE-2026-14650"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/846665"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/376163"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/376163/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-404"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{"bugzilla": {"description": "grass: Grass: Denial of Service in UTF-8 Character Handler", "id": "2497087", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2497087"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-1050", "details": ["A flaw has been found in connorskees grass up to 0.13.4. The affected element is the function grass_compiler::raw_to_parse_error of the component UTF-8 Character Handler. Executing a manipulation can lead to denial of service. The attack is restricted to local execution. The exploit has been published and may be used. In Issue #117 with similar structure the project maintainer explains: \"DoS vulnerabilities are generally fine in Sass compilers -- they are trivially possible with recursive functions, infinite loops, nested mixins, etc. The description here is wrong. Compile time is not expected to be linear relative to the input, and the @extend algorithm is definitionally exponential.\"", "A flaw was found in Grass. A local attacker could exploit a vulnerability in the UTF-8 Character Handler, specifically within the `grass_compiler::raw_to_parse_error` function, by executing a manipulation. This could lead to a denial of service, making the system or application unavailable to legitimate users."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-14650", "public_date": "2026-07-04T20:00:08Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-14650\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-14650\nhttps://github.com/connorskees/grass/\nhttps://github.com/connorskees/grass/issues/116\nhttps://vuldb.com/cve/CVE-2026-14650\nhttps://vuldb.com/submit/846665\nhttps://vuldb.com/vuln/376163\nhttps://vuldb.com/vuln/376163/cti"], "statement": "This flaw has a Low impact, as it requires a local authenticated attacker to trigger a denial of service within the Grass UTF-8 Character Handler. The vulnerability's nature, affecting a compiler during local execution, limits its broader risk in typical Red Hat environments where such tools are not exposed to untrusted input in production.", "threat_severity": "Low"}

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