CVE-2026-9496

HIGH

Pacote - Inefficient Regular Expression Complexity

Title source: rule
STIX 2.1

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.

Scores

CVSS v3 7.5
EPSS 0.0046
EPSS Percentile 36.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-1333 CWE-400
Status published
Products (2)
None/org.webjars.npm:pacote 11.2.7
None/pacote 11.2.7
Published May 26, 2026
Tracked Since May 26, 2026