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Fencer Intel
high 8.7

CVE-2026-71476 json

Nx: Zip-Slip in the self-hosted remote cache

published 4mo ago modified 18d ago also EUVD-2026-54250 , GHSA-vp3h-ghgh-jr7g

cvss
8.7
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

Nx is a monorepo solution for TypeScript and polyglot codebases. From version 20.8.0 until 22.7.7 and 23.0.2, the Nx self-hosted HTTP remote cache extracts downloaded cache artifacts without constraining where files are written. A malicious or on-path (MITM) remote cache server can return a crafted tar archive whose entries escape the cache directory and write to arbitrary locations on the machine running Nx, which can be escalated to remote code execution. Nx's default local cache and Nx Cloud are not affected; only workspaces configured to use a self-hosted remote cache are affected. This issue is fixed in versions 22.7.7 and 23.0.2.

Patch / fix

  • npm nx 22.7.7, 23.0.2

Is CVE-2026-71476 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-71476 updated cvss 9.6

nx: @nx/s3-cache: @nx/gcs-cache: @nx/azure-cache: @nx/shared-fs-cache: @nx/powerpack-s3-cache: @nx/powerpack-gcs-cache: @nx/powerpack-azure-cache: @nx/powerpack-shared-fs-cache: Nx: Remote Code Execut

  • Red Hat Ansible Automation Platform 2 automation-platform-ui 2.6.12-1.el9ap, automation-gateway 2.5.20260804-1.el9ap, ansible-automation-platform-26/gateway-rhel9, ansible-automation-platform-27/gateway-rhel9 Red Hat Enterprise Linux 8 grafana, grafana-loki, grafana-mssql, grafana-mysql, grafana-selinux, grafana-graphite, +9 more Red Hat Enterprise Linux 10 grafana 12.4.3-2.el10 Red Hat Hardened Images grafana12.4 12.4.7-0.1.hum1, grafana13.1 13.1.2-0.1.hum1
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
3mo ago

Exploit prediction

0.87% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
npm nx
>=20.8.0, <22.7.7
>=23.0.0, <23.0.2
22.7.7
23.0.2
npm @nx/s3-cache
<=5.0.7
 no fix listed
npm @nx/gcs-cache
<=5.0.7
 no fix listed
npm @nx/azure-cache
<=5.0.7
 no fix listed
npm @nx/shared-fs-cache
<=5.0.7
 no fix listed
npm @nx/powerpack-s3-cache
<=5.0.7
 no fix listed
npm @nx/powerpack-gcs-cache
<=5.0.7
 no fix listed
npm @nx/powerpack-azure-cache
<=5.0.7
 no fix listed
npm @nx/powerpack-shared-fs-cache
<=5.0.7
 no fix listed

Affected products

  • nrwl nx

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory
  • CWE-59 Improper Link Resolution Before File Access

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of nrwl/nx published their own advisory on GitHub. Reviewed sources take precedence over it.