High severity7.5NVD Advisory· Published May 26, 2026· Updated Jul 23, 2026
CVE-2026-9496
CVE-2026-9496
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pacotenpm | >= 11.2.7, < 21.5.1 | 21.5.1 |
Affected products
16- osv-coords14 versionspkg:apk/chainguard/lernapkg:apk/chainguard/prismpkg:apk/wolfi/lernapkg:apk/wolfi/prismpkg:npm/pacotepkg:rpm/almalinux/nodejspkg:rpm/almalinux/nodejs-develpkg:rpm/almalinux/nodejs-docspkg:rpm/almalinux/nodejs-full-i18npkg:rpm/almalinux/nodejs-libspkg:rpm/almalinux/nodejs-npmpkg:rpm/opensuse/nodejs22&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/nodejs24&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/nodejs24&distro=openSUSE%20Tumbleweed
< 10.0.1-r1+ 13 more
- (no CPE)range: < 10.0.1-r1
- (no CPE)range: < 5.16.0-r6
- (no CPE)range: < 10.0.1-r1
- (no CPE)range: < 5.16.0-r6
- (no CPE)range: >= 11.2.7, < 21.5.1
- (no CPE)range: < 1:22.23.2-3.el10_2
- (no CPE)range: < 1:22.23.2-3.el10_2
- (no CPE)range: < 1:22.23.2-3.el10_2
- (no CPE)range: < 1:22.23.2-3.el10_2
- (no CPE)range: < 1:22.23.2-3.el10_2
- (no CPE)range: < 1:10.9.8-1.22.23.2.3.el10_2
- (no CPE)range: < 22.23.0-160000.1.1
- (no CPE)range: < 24.18.0-160000.1.1
- (no CPE)range: < 24.17.0-1.1
Patches
Vulnerability mechanics
References
9- github.com/advisories/GHSA-w4pp-8pjf-rmxwghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-9496ghsaADVISORY
- github.com/npm/pacote/blob/9d7459440826ab4cf962ef98d8f3fd0c4d464b5c/lib/util/add-git-sha.js%23L2C1-L13C2nvdWEB
- github.com/npm/pacote/commit/627a7dc1a214d857472a13b48e42559c75288c9eghsaWEB
- github.com/npm/pacote/commit/ce804fb1647fe1699b2f87efd01ea9f4efed8508nvdWEB
- github.com/npm/pacote/releases/tag/v21.5.1ghsaWEB
- github.com/npm/pacote/releases/tag/v22.0.0ghsaWEB
- security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-16874025nvdWEB
- security.snyk.io/vuln/SNYK-JS-PACOTE-8225084nvdWEB
News mentions
0No linked articles in our index yet.