CVE-2026-9496

CVSS 8.7 HIGHEPSS 0.3%CWE-1333 CWE-400

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.7EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

26 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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: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

Affected products

n/a · org.webjars.npm:pacote n/a · pacote

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References

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