CVE-2026-9496

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{"affected": [{"affectedData": [{"product": "pacote", "vendor": "n/a", "versions": [{"lessThan": "21.5.1", "status": "affected", "version": "11.2.7", "versionType": "semver"}]}, {"product": "org.webjars.npm:pacote", "vendor": "n/a", "versions": [{"lessThan": "*", "status": "affected", "version": "11.2.7", "versionType": "semver"}]}], "source": "report@snyk.io"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Versions of the package pacote from 11.2.7 and before 21.5.1 are vulnerable to Denial of Service (DoS) via the addGitSha function. An attacker can exploit this vulnerability by supplying a specially crafted spec.rawSpec value that triggers the function\u2019s regex replacement and string-manipulation logic, causing excessive CPU consumption and potentially stalling or crashing the process."}, {"lang": "es", "value": "Las versiones del paquete pacote a partir de la 11.2.7 son vulnerables a denegaci\u00f3n de servicio (DoS) a trav\u00e9s de la funci\u00f3n addGitSha. Un atacante puede explotar esta vulnerabilidad al proporcionar un valor spec.rawSpec especialmente dise\u00f1ado que activa la l\u00f3gica de reemplazo de expresiones regulares y manipulaci\u00f3n de cadenas de la funci\u00f3n, causando un consumo excesivo de CPU y potencialmente paralizando o bloqueando el proceso."}], "id": "CVE-2026-9496", "lastModified": "2026-07-23T11:10:00.120", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "report@snyk.io", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.7, "baseSeverity": "HIGH", "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": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "report@snyk.io", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-9496", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-26T12:34:38.845728Z", "version": "2.0.3"}}]}, "published": "2026-05-26T07:16:19.410", "references": [{"source": "report@snyk.io", "url": "https://github.com/npm/pacote/blob/9d7459440826ab4cf962ef98d8f3fd0c4d464b5c/lib/util/add-git-sha.js%23L2C1-L13C2"}, {"source": "report@snyk.io", "url": "https://github.com/npm/pacote/commit/ce804fb1647fe1699b2f87efd01ea9f4efed8508"}, {"source": "report@snyk.io", "url": "https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-16874025"}, {"source": "report@snyk.io", "url": "https://security.snyk.io/vuln/SNYK-JS-PACOTE-8225084"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://security.snyk.io/vuln/SNYK-JS-PACOTE-8225084"}], "sourceIdentifier": "report@snyk.io", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1333"}], "source": "report@snyk.io", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-400"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[11.2.7,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "pacote", "source": "cna", "vendor": "n/a"}, "product": "pacote", "vendor": "npmjs"}], "created": "2026-05-26T07:30:36.192588+00:00", "title": "Denial of Service via addGitSha in pacote due to malicious spec.rawSpec input", "updated": "2026-06-27T16:30:17.670004+00:00", "vendors": ["npmjs", "npmjs$PRODUCT$pacote"]}