{"id":"GHSA-w4pp-8pjf-rmxw","summary":"pacote is vulnerable to Denial of Service (DoS) via the addGitSha function","details":"Versions of the package pacote from 11.2.7 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.","aliases":["CVE-2026-9496"],"modified":"2026-08-27T16:56:11.638362Z","published":"2026-05-26T13:30:54Z","database_specific":{"github_reviewed_at":"2026-08-27T16:39:41Z","nvd_published_at":"2026-05-26T07:16:19Z","cwe_ids":["CWE-1333","CWE-400"],"severity":"HIGH","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9496"},{"type":"WEB","url":"https://github.com/npm/pacote/commit/627a7dc1a214d857472a13b48e42559c75288c9e"},{"type":"WEB","url":"https://github.com/npm/pacote/commit/ce804fb1647fe1699b2f87efd01ea9f4efed8508"},{"type":"PACKAGE","url":"https://github.com/npm/pacote"},{"type":"WEB","url":"https://github.com/npm/pacote/blob/9d7459440826ab4cf962ef98d8f3fd0c4d464b5c/lib/util/add-git-sha.js%23L2C1-L13C2"},{"type":"WEB","url":"https://github.com/npm/pacote/releases/tag/v21.5.1"},{"type":"WEB","url":"https://github.com/npm/pacote/releases/tag/v22.0.0"},{"type":"WEB","url":"https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-16874025"},{"type":"WEB","url":"https://security.snyk.io/vuln/SNYK-JS-PACOTE-8225084"}],"affected":[{"package":{"name":"pacote","ecosystem":"npm","purl":"pkg:npm/pacote"},"ranges":[{"type":"SEMVER","events":[{"introduced":"11.2.7"},{"fixed":"21.5.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-w4pp-8pjf-rmxw/GHSA-w4pp-8pjf-rmxw.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"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"}]}