CVE-2026-9496

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.

Score

CVSS 4.0 8.7 High

Status

Awaiting Analysis - report@snyk.io

Published

2026-05-26

Last modified

2026-07-07

Weaknesses

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