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TI-2026-38565 Aliases CVE-2026-53486GHSA-mp2f-45pm-3cg9

decompress: Archive extraction can create files and links outside the target directory

Priority MEDIUM 49CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 1 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.

Summary

The decompress package for Node.js extracts archives. Prior to 10.2.1 and 11.1.3, archive extraction can create files and links outside the target directory. When extracting an archive to a directory, a crafted archive can read or write files outside that directory because hardlink and symlink entries are created without checking where targets point, path containment used a string prefix comparison, and file modes failed to remove setuid, setgid, or sticky bits. This issue is fixed in @xhmikosr/decompress versions 10.2.1 and 11.1.3.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00749 55th percentileScored 2026-11-07
Fix Partial decompress (XhmikosR): 10.2.1, 11.1.3@xhmikosr/decompress (npm): 10.2.1, 11.1.3Red Hat: 1 advisoryRed Hat: 1 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
XhmikosRdecompressbefore 10.2.1; 11.0.0 to before 11.1.310.2.1, 11.1.3Patch availableCNA
—@xhmikosr/decompress (npm)before 10.2.110.2.1Patch availableGHSA-mp2f-45pm-3cg9
—@xhmikosr/decompress (npm)11.0.0 to before 11.1.311.1.3Patch availableGHSA-mp2f-45pm-3cg9
—decompress (npm)up to 4.2.1—No fix listedGHSA-mp2f-45pm-3cg9
  • decompress VendorXhmikosR Affected before 10.2.1; 11.0.0 to before 11.1.3 Fixed in 10.2.1, 11.1.3 Patch available CNA
  • @xhmikosr/decompress (npm) Vendor— Affected before 10.2.1 Fixed in 10.2.1 Patch available GHSA-mp2f-45pm-3cg9
  • @xhmikosr/decompress (npm) Vendor— Affected 11.0.0 to before 11.1.3 Fixed in 11.1.3 Patch available GHSA-mp2f-45pm-3cg9
  • decompress (npm) Vendor— Affected up to 4.2.1 Fixed in — No fix listed GHSA-mp2f-45pm-3cg9

Remediation

  • Fix · CNA decompress (XhmikosR) Fixed in 10.2.1, 11.1.3
  • Fix · GHSA-mp2f-45pm-3cg9 @xhmikosr/decompress (npm) Fixed in 10.2.1 Advisory →
  • Fix · GHSA-mp2f-45pm-3cg9 @xhmikosr/decompress (npm) Fixed in 11.1.3 Advisory →

Red Hat 1 advisory

  • RHSA-2026:40415 Released 2026-07-15 · Red Hat rating Important
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images aspnetcore-runtime-8.0-8.0.28-1.2.hum1@aarch64, aspnetcore-runtime-8.0-8.0.28-1.2.hum1@x86_64, aspnetcore-runtime-dbg-8.0-8.0.28-1.2.hum1@aarch64 +22

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Advanced Cluster Management for Kubernetes 2AffectedNo fix planned: Out of support scope
Red Hat Hardened ImagesFixed RHSA-2026:40415
Not affected: 1 product
  • Red Hat Build of Keycloak

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-53486
  2. 2026-10-03 Alias added: GHSA-mp2f-45pm-3cg9

References

Other 11

  • TI-2026-65199 @xhmikosr/decompress: Path traversal via symlink chain CVSS 3.1CRITICAL 9.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences