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.
02 / AFFECTED SOFTWARE
Affected packages
76 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9496.json
- https://github.com/npm/pacote/blob/9d7459440826ab4cf962ef98d8f3fd0c4d464b5c/lib/util/add-git-sha.js%23L2C1-L13C2
- https://github.com/npm/pacote/commit/ce804fb1647fe1699b2f87efd01ea9f4efed8508
- https://nvd.nist.gov/vuln/detail/CVE-2026-9496
- https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-16874025
- https://security.snyk.io/vuln/SNYK-JS-PACOTE-8225084