Hmbown CodeWhale up to 0.8.63 git_show tool rev argument injection

Summaryinfo

A vulnerability categorized as problematic has been discovered in Hmbown CodeWhale up to 0.8.63. This affects the function git_show of the component git_show tool. Such manipulation of the argument rev leads to argument injection. This vulnerability is traded as CVE-2026-75913. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Hmbown CodeWhale up to 0.8.63 and classified as problematic. Affected by this issue is the function git_show of the component git_show tool. The manipulation of the argument rev with an unknown input leads to a argument injection vulnerability. Using CWE to declare the problem leads to CWE-88. The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string. Impacted is integrity, and availability. CVE summarizes:

CodeWhale (codewhale / codewhale-tui) versions >= 0.8.41 and < 0.8.64 contain an argument injection vulnerability in the git_show tool. The model-supplied rev parameter is passed unvalidated into the git show argv without an --end-of-options sentinel, so a value beginning with --output= is interpreted as a git flag. Because the tool is registered as auto-approved and advertised as read-only, an attacker (via a malicious repository combined with prompt injection) can cause an unprompted arbitrary file write at the privilege of the invoking user, targeting sensitive files such as ~/.ssh/authorized_keys, ~/.bashrc, or ~/.gitconfig. Fixed in 0.8.64 by adding rev validation.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-75913 since 08/18/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

Upgrading to version 0.8.64 eliminates this vulnerability.

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Productinfo

Vendor

• Hmbown

Name

• CodeWhale

Version

• 0.8.0
• 0.8.1
• 0.8.2
• 0.8.3
• 0.8.4
• 0.8.5
• 0.8.6
• 0.8.7
• 0.8.8
• 0.8.9
• 0.8.10
• 0.8.11
• 0.8.12
• 0.8.13
• 0.8.14
• 0.8.15
• 0.8.16
• 0.8.17
• 0.8.18
• 0.8.19
• 0.8.20
• 0.8.21
• 0.8.22
• 0.8.23
• 0.8.24
• 0.8.25
• 0.8.26
• 0.8.27
• 0.8.28
• 0.8.29
• 0.8.30
• 0.8.31
• 0.8.32
• 0.8.33
• 0.8.34
• 0.8.35
• 0.8.36
• 0.8.37
• 0.8.38
• 0.8.39
• 0.8.40
• 0.8.41
• 0.8.42
• 0.8.43
• 0.8.44
• 0.8.45
• 0.8.46
• 0.8.47
• 0.8.48
• 0.8.49
• 0.8.50
• 0.8.51
• 0.8.52
• 0.8.53
• 0.8.54
• 0.8.55
• 0.8.56
• 0.8.57
• 0.8.58
• 0.8.59
• 0.8.60
• 0.8.61
• 0.8.62
• 0.8.63

Website

• Product: https://github.com/Hmbown/CodeWhale/

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