{"cve":"CVE-2026-9496","nvd":{"published":"2026-05-26T07:16:19.410","modified":"2026-07-23T11:10:00.120","status":"Awaiting Analysis","description":"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’s regex replacement and string-manipulation logic,  causing excessive CPU consumption and potentially stalling or crashing the process.","cvss_v4":{"vector":"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","score":7.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-1333","CWE-400"],"references":["https://github.com/npm/pacote/blob/9d7459440826ab4cf962ef98d8f3fd0c4d464b5c/lib/util/add-git-sha.js%23L2C1-L13C2","https://github.com/npm/pacote/commit/ce804fb1647fe1699b2f87efd01ea9f4efed8508","https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-16874025","https://security.snyk.io/vuln/SNYK-JS-PACOTE-8225084","https://security.snyk.io/vuln/SNYK-JS-PACOTE-8225084"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:36:28.938604137+00:00"},"epss":{"cve":"CVE-2026-9496","score":0.00346,"percentile":0.28189,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-w4pp-8pjf-rmxw","url":"https://osv.dev/vulnerability/GHSA-w4pp-8pjf-rmxw","summary":"pacote is vulnerable to Denial of Service (DoS) via the addGitSha function","modified":"2026-09-10T03:51:07.162466994Z","packages":[{"ecosystem":"npm","name":"pacote","purl":"pkg:npm/pacote","ranges":[">=11.2.7 <21.5.1"],"fixed":["21.5.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}