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CVE-2026-79408

9.8
Critical
EPSS 1%Sep 2, 2026

OS command injection in MetaGPT 0.8.1 RepoParser allows arbitrary command execution.

common questions

Is CVE-2026-79408 being exploited?

Not confirmed. CVE-2026-79408 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 1.2% probability of exploitation in the next 30 days.

How severe is CVE-2026-79408?

CVE-2026-79408 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-79408?

Not known from our data. No patch reference has been recorded for CVE-2026-79408, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.

What does CVE-2026-79408 affect?

CVE-2026-79408 affects MetaGPT 0.8.1, metagpt/repo_parser.py, RepoParser.rebuild_class_views(path), Deployments processing untrusted path input. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-79408?

Remove/disable MetaGPT 0.8.1, restrict access, sanitize inputs, and apply vendor patch when released.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
MetaGPT 0.8.1metagpt/repo_parser.pyRepoParser.rebuild_class_views(path)Deployments processing untrusted path input
impact

Remote OS command execution via RepoParser.rebuild_class_views(path), enabling system compromise, data theft, or lateral movement.

action required

Immediate action required

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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