uTox up to 0.18.1 ft_find_resumeable path traversal

Summaryinfo

A vulnerability has been found in uTox up to 0.18.1 and classified as critical. This impacts the function ft_find_resumeable. This manipulation causes path traversal. This vulnerability is handled as CVE-2026-113352. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in uTox up to 0.18.1 and classified as critical. Affected by this vulnerability is the function ft_find_resumeable. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

uTox through 0.18.1 contains a path traversal vulnerability that allows Tox friends to write arbitrary files by sending absolute or ../ file names to victims with auto-accept enabled. Attackers can overwrite shell startup files or plant crafted .ftinfo resume records that ft_find_resumeable() loads, abusing FILE pointers to write /proc/self/mem and execute code.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-113352 since 10/20/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/20/2026). MITRE ATT&CK project uses the attack technique T1006 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• uTox

Version

• 0.18.0
• 0.18.1

Website

• Product: https://github.com/uTox/uTox/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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