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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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
https://security.snyk.io/vuln/SNYK-JS-PACOTE-8225084

Configurations

No configuration.

History

No history.

Information

Published : 2026-05-26 07:16

Updated : 2026-07-23 11:10

NVD link : CVE-2026-9496

Mitre link : CVE-2026-9496

CVE.ORG link : CVE-2026-9496

JSON object : View

Products Affected

No product.

CWE

CWE-1333

Inefficient Regular Expression Complexity

CWE-400

Uncontrolled Resource Consumption

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