CVE-2026-75911Public exploit

Shell command execution via unchecked project allow_shell override

Published Aug 18, 2026 · Updated Aug 18, 2026

Code injection in Hmbown CodeWhale before 0.8.64 allows attackers to execute shell commands through a malicious repository config. The merge_project_config function unconditionally copies allow_shell=true from an untrusted project file, exposing exec_shell and task_shell tools to the model. Exploitation requires a repository maintainer or supply-chain attacker to plant the file and a user to run CodeWhale in that repository; commands then run with the user's permissions, and many execute without another approval.

CVSS severity7.8
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Code injection in Hmbown CodeWhale before 0.8.64 allows attackers to execute shell commands through a malicious repository config. The merge_project_config function unconditionally copies allow_shell=true from an untrusted project file, exposing exec_shell and task_shell tools to the model. Exploitation requires a repository maintainer or supply-chain attacker to plant the file and a user to run CodeWhale in that repository; commands then run with the user's permissions, and many execute without another approval.

The record

CVE
CVE-2026-75911
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
Hmbown
Product
CodeWhale
Classifications
CWE-94, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.8.41 <0.8.64
  2. Affected versionversion=0.8.6 <0.8.41

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Hmbown · CodeWhaleversion=0.8.41 <0.8.64; version=0.8.6 <0.8.41

Published CVSS scores

7.8GitHub Security AdvisoryCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1204.002User Execution: Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo