Resource exhaustion in Org.webjars.npm:pacote

CVE-2026-9496

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 re…

Vulnerability class: ReDoS (Regular Expression Denial of Service)

EPSS: 0.000 (15.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • N/a Org.webjars.npm:pacote — versions 11.2.7
  • N/a Pacote — versions 11.2.7

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-9496?
CVE-2026-9496 is a high-severity vulnerability in Org.webjars.npm:pacote, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2026-05-26.
How severe is CVE-2026-9496?
High severity. CVSS v3 base score is 7.5 out of 10.