Black Lantern Security BBOT up to 2.8.4 Unarchive Internal path traversal

Summaryinfo

A vulnerability identified as critical has been detected in Black Lantern Security BBOT up to 2.8.4. The impacted element is an unknown function of the component Unarchive Internal Module. This manipulation causes path traversal. This vulnerability is registered as CVE-2026-12565. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Black Lantern Security BBOT up to 2.8.4. Affected by this vulnerability is some unknown functionality of the component Unarchive Internal Module. 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:

The unarchive internal module's archive extraction commands perform no code-level validation on extracted file paths, relying entirely on the behavior of external tools (e.g. GNU tar) which varies by platform. While CVE-2025-10284 addressed git-specific RCE vectors, the underlying archive extraction path traversal was never fixed. On systems with GNU tar < 1.34 (Ubuntu 20.04, Debian Buster, CentOS 7, many Docker base images), a malicious archive can write files outside the intended extraction directory.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-12565 since 06/17/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 1.34 or 20.04 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• Black Lantern Security

Name

• BBOT

Version

• 2.8.0
• 2.8.1
• 2.8.2
• 2.8.3
• 2.8.4

License

• open-source

CPE 2.3info

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CPE 2.2info

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