Description
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.
Published: 2026-05-26
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sat, 27 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
Title Denial of Service via addGitSha in pacote due to malicious spec.rawSpec input

Sat, 27 Jun 2026 15:45:00 +0000

Type Values Removed Values Added
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. 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.
References

Wed, 27 May 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Npmjs
Npmjs pacote
Vendors & Products Npmjs
Npmjs pacote

Tue, 26 May 2026 16:15:00 +0000

Type Values Removed Values Added
Title Denial of Service via RegExp Replacement in pacote addGitSha Function

Tue, 26 May 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 26 May 2026 07:45:00 +0000

Type Values Removed Values Added
Title Denial of Service via RegExp Replacement in pacote addGitSha Function

Tue, 26 May 2026 06:30:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-1333
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P'}

cvssV4_0

{'score': 8.7, 'vector': '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'}

Subscriptions

Npmjs Pacote
cve-icon MITRE

Status: PUBLISHED

Assigner: snyk

Published:

Updated: 2026-06-27T15:25:16.972Z

Reserved: 2026-05-25T09:30:49.118Z

Link: CVE-2026-9496

cve-icon Vulnrichment

Updated: 2026-05-26T12:34:11.254Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-26T07:16:19.410

Modified: 2026-06-17T11:05:22.400

Link: CVE-2026-9496

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-27T16:30:17Z

Weaknesses