CVE-2026-56876Patch(max-mapper / extract-zip)

LOWCVSS 8.6 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch max-mapper extract-zip systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

extract-zip does not validate symlink targets when extracting zip archives. When processing a malicious zip file containing a symlink with a relative path like '../../../../etc/passwd', extract-zip will extract the symlink without validation, allowing it to point outside the extraction directory. Depending on how extract-zip is used, an attacker could read or write to arbitrary files.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-22CWE-61

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

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

  • extract-zip

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
extract-zip

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-27: 1Patch / Workaround · 2026-06-27: 1Technical Details · 2026-06-27: 106-27
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters
    Patch

    #CVE-2026-56876 - Path Traversal in Extract-zip. #Symlink handling flaw allows arbitrary file read/write via malicious #zip. #CVSS 8.1. No patch available. Avoid untrusted archives. #CVEAlert #infosec #cybersecurity #devsecops #sysadmin #linux #developers More info: https://www.valtersit.com/cve/CVE-2026-56876

    Post summary

    The post alerts that CVE-2026-56876 allows arbitrary file read/write via malicious ZIP archives, carries a CVSS of 8.1, does not yet have a patch, and recommends avoiding untrusted archives as a mitigation.

    0001071
    966 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appmax-mapperextract-zip-node.js-

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