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@xhmikosr/decompress: Path traversal via symlink chain

Type: advisorySource: Official CVE List1 source record

The decompress package for Node.js extracts archives. Prior to 10.2.2 and 11.1.4, the default decompress(input, output) API relies on lexical containment checks that do not account for the kernel following a planted symlink chain. An attacker can supply a crafted archive containing chained symlink entries so that a later entry resolves outside the output directory. This allows files outside output to be read or written, and overwriting startup scripts or configuration can lead to remote code execution. The maintained @xhmikosr/decompress package is fixed in 10.2.2 and 11.1.4, but the separately affected unmaintained decompress package remains unpatched through 4.2.1. This vulnerability results from a bypass of the incomplete hardening for CVE-2026-53486. @xhmikosr/decompress is fixed in versions 10.2.2 and 11.1.4.

Announced Source revision 1
Original source ↗

CVE-2026-101894

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-101894

decompress

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

decompress

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "XhmikosR",
    "product": "decompress",
    "versions": [
      {
        "status": "affected",
        "version": "< 10.2.2"
      },
      {
        "status": "affected",
        "version": ">= 11.0.0, < 11.1.4"
      }
    ]
  },
  {
    "vendor": "kevva",
    "product": "decompress",
    "versions": [
      {
        "status": "affected",
        "version": "<= 4.2.1"
      }
    ]
  }
]
Related CVEs
CVE-2026-101894

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2026-101894 · Critical

@xhmikosr/decompress, @xhmikosr/decompress, decompress

Event
#3259 · Revision 1
Added to Heist Feed
Publisher date
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