CVE-2026-39246Disclosure(decompress_project / decompress)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

decompress before 4.2.2 allows arbitrary symlink creation during archive extraction. When processing symlink entries (type === 'symlink'), the x.linkname field from the archive is passed directly to fs.symlink() without validation (index.js line 121). The preventWritingThroughSymlink check on line 98 only applies to file entries, not symlink creation. An attacker can craft an archive with symlink entries pointing to sensitive files outside the extraction directory (e.g., /etc/passwd), enabling information disclosure when the application reads the extracted contents.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-59

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • decompress

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Products
decompress

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-13: 1Technical Details · 2026-07-13: 107-13
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • DailyCVE@dailycve
    Disclosure

    🔴 decompress (Nodejs), Path Traversal via Arbitrary Symlink Creation, #CVE-2026-39246 (High) -DC-Jul2026-901 https://dailycve.com/decompress-nodejs-path-traversal-via-arbitrary-symlink-creation-cve-2026-39246-high-dc-jul2026-901/

    Post summary

    This post announces a high‑severity Path Traversal vulnerability (CVE‑2026‑39246) in decompress (Nodejs) with no mention of exploitation, patches, or PoC.

    0000043
    218 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appdecompress_projectdecompress-node.js-

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