CVE-2026-9496: pacote is vulnerable to Denial of Service (DoS) via the addGitSha function
(updated )
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.
References
- github.com/advisories/GHSA-w4pp-8pjf-rmxw
- github.com/npm/pacote/blob/9d7459440826ab4cf962ef98d8f3fd0c4d464b5c/lib/util/add-git-sha.js%23L2C1-L13C2
- github.com/npm/pacote/commit/627a7dc1a214d857472a13b48e42559c75288c9e
- github.com/npm/pacote/commit/ce804fb1647fe1699b2f87efd01ea9f4efed8508
- github.com/npm/pacote/releases/tag/v21.5.1
- github.com/npm/pacote/releases/tag/v22.0.0
- nvd.nist.gov/vuln/detail/CVE-2026-9496
- security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-16874025
- security.snyk.io/vuln/SNYK-JS-PACOTE-8225084
Code Behaviors & Features
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