CVE-2025-3445 Details
Description
A Path Traversal "Zip Slip" vulnerability has been identified in mholt/archiver in Go. This vulnerability allows using a crafted ZIP file containing path traversal symlinks to create or overwrite files with the user's privileges or application utilizing the library. When using the archiver.Unarchive functionality with ZIP files, like this: archiver.Unarchive(zipFile, outputDir), A crafted ZIP file can be extracted in such a way that it writes files to the affected system with the same privileges as the application executing this vulnerable functionality. Consequently, sensitive files may be overwritten, potentially leading to privilege escalation, code execution, and other severe outcomes in some cases. It's worth noting that a similar vulnerability was found in TAR files (CVE-2024-0406). Although a fix was implemented, it hasn't been officially released, and the affected project has since been deprecated. The successor to mholt/archiver is a new project called mholt/archives, and its initial release (v0.1.0) removes the Unarchive() functionality.
A Path Traversal vulnerability, known as 'Zip Slip', has been discovered in the mholt/archiver library for Go. This vulnerability arises when a crafted ZIP file containing path traversal symlinks is processed using the archiver.Unarchive function. The flaw allows the ZIP file to be extracted in a manner that overwrites files on the system with the same privileges as the application executing the extraction. This could lead to the unintentional modification of sensitive files, with potential consequences such as privilege escalation or code execution. It's important to note that a similar issue was previously identified with TAR files, which has not been officially addressed.
Users are advised to transition to the mholt/archives project, which addresses this vulnerability and offers an improved API. The initial release of mholt/archives, version 0.1.0, removes the vulnerable Unarchive() functionality.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 13, 2025CISA-ADP
Assessed Apr 14, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/mholt/archiver/ | [email protected] | Source CodeVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mholt/archiver | All versions |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2025 | New CVE Received | [email protected] |