CVE-2026-0761
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedFoundation Agents MetaGPT actionoutput_str_to_mapping Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foundation Agents MetaGPT. Authentication is not required to exploit this vulnerability. The specific flaw exists within the actionoutput_str_to_mapping function. The issue results from the lack of proper validation of a user-supplied string before using it to execute Python code. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-28124.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThis is a code injection vulnerability in MetaGPT's Foundation Agents where the actionoutput_str_to_mapping function executes user-supplied strings as Python code without validation. The flaw allows unauthenticated remote attackers to achieve RCE in the context of the service account by supplying maliciously crafted strings that get evaluated.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 0.8.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify installed MetaGPT versionRun 'pip show metagpt' or check your package manager for the installed version of the metagpt packageAffected if The installed version is 0.8.1 exactly
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Locate the vulnerable functionSearch for the file containing 'actionoutput_str_to_mapping' in your metagpt installation directory, typically under metagpt/ directoryAffected if The function file exists in your installation
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Inspect the function for unsafe evaluationOpen the actionoutput_str_to_mapping function and examine if it uses eval() or exec() to process output strings without input validationAffected if The function contains eval() or exec() calls that process user-supplied strings without sanitization
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Check if the agent component is in useReview your codebase or configuration to determine if Foundation Agents or actionoutput_str_to_mapping is invoked during runtimeAffected if Your application calls or imports the vulnerable function as part of agent processing workflows
You are affected if you are running metagpt version 0.8.1 and your application uses the actionoutput_str_to_mapping function which contains unsafe eval/exec usage on unvalidated input strings.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataReplace unsafe code execution (eval/exec) in actionoutput_str_to_mapping with safe parsing methods (ast.literal_eval or structured parsing) and implement strict input validation before any evaluation occurs.
- Consultation2.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-0761 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-0761 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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