npm/pacote · Security
pacote is vulnerable to Denial of Service (DoS) via the addGitSha function
- GHSA ID
- GHSA-w4pp-8pjf-rmxw
- CVE ID
- CVE-2026-9496
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v4
- 7.7 · 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
Description
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.
CWEs
- CWE-400 · Uncontrolled Resource Consumption
- CWE-1333 · Inefficient Regular Expression Complexity
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-9496 ↗
- https://github.com/npm/pacote/blob/9d7459440826ab4cf962ef98d8f3fd0c4d464b5c/lib/util/add-git-sha.js%23L2C1-L13C2 ↗
- https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-16874025 ↗
- https://security.snyk.io/vuln/SNYK-JS-PACOTE-8225084 ↗
- https://github.com/npm/pacote/commit/627a7dc1a214d857472a13b48e42559c75288c9e ↗
- https://github.com/npm/pacote/commit/ce804fb1647fe1699b2f87efd01ea9f4efed8508 ↗
- https://github.com/npm/pacote/releases/tag/v21.5.1 ↗
- https://github.com/npm/pacote/releases/tag/v22.0.0 ↗
- https://github.com/advisories/GHSA-w4pp-8pjf-rmxw ↗