Erlang OTP up to 28.0.1 lib/stdlib/src/zip.erl path traversal

Summaryinfo

A vulnerability, which was classified as critical, was found in Erlang OTP up to 28.0.1. This affects an unknown function in the library lib/stdlib/src/zip.erl. Such manipulation leads to path traversal. This vulnerability is referenced as CVE-2025-4748. The attack can only be performed from a local environment. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Erlang OTP up to 28.0.1. It has been rated as critical. Affected by this issue is some unknown functionality in the library lib/stdlib/src/zip.erl. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is integrity, and availability. CVE summarizes:

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Erlang OTP (stdlib modules) allows Absolute Path Traversal, File Manipulation. This vulnerability is associated with program files lib/stdlib/src/zip.erl and program routines zip:unzip/1, zip:unzip/2, zip:extract/1, zip:extract/2 unless the memory option is passed. This issue affects OTP from OTP 17.0 before OTP 28.0.1, OTP 27.3.4.1 and OTP 26.2.5.13, corresponding to stdlib from 2.0 before 7.0.1, 6.2.2.1 and 5.2.3.4.

The weakness was published by Wander Nauta as GHSA-9g37-pgj9-wrhc. The advisory is available at github.com. This vulnerability is handled as CVE-2025-4748 since 05/15/2025. The exploitation is known to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 240158 (Erlang/OTP 17.0 < 26.2.5.13 / 27.0 < 27.3.4.1 / 28.0 < 28.0.1 Path Traversal (CVE-2025-4748)), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (240158) and EUVD (EUVD-2025-18414). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Erlang

Name

• OTP

Version

• 2.0
• 5.2.3.4
• 6.2.2.1
• 7.0.1
• 17.0
• 26.2.5.13
• 27.3.4.1
• 28.0.1

Website

• Product: https://github.com/erlang/otp/

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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