Bug 2493633 (CVE-2026-56876) - CVE-2026-56876 extract-zip: github.com/maxogden/extract-zip: extract-zip: Arbitrary file write and information disclosure via symlink validation bypass
Summary: CVE-2026-56876 extract-zip: github.com/maxogden/extract-zip: extract-zip: Arb...
Keywords:
Status: NEW
Alias: CVE-2026-56876
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-26 18:01 UTC by OSIDB Bzimport
Modified: 2026-08-20 16:06 UTC (History)
38 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:57590 0 None None None 2026-08-20 16:06:58 UTC

Description OSIDB Bzimport 2026-06-26 18:01:30 UTC 
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.
Comment 2 errata-xmlrpc 2026-08-20 16:06:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:57590 https://access.redhat.com/errata/RHSA-2026:57590
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