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CVE Record

CVE-2026-79408: An OS command injection vulnerability in MetaGPT 0.8.1 allows an attacker to execute arbitrary commands via...

An OS command injection vulnerability in MetaGPT 0.8.1 allows an attacker to execute arbitrary commands via the path argument of RepoParser.rebuild_class_views() in metagpt/repo_parser.py.

CriticalCVSS 9.8Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

MetaGPT 0.8.1 reportedly passes a repository path into an operating-system command without adequate protection. If an attacker can control that path, they may run arbitrary commands with the MetaGPT process’s permissions, potentially stealing data, altering systems, or disrupting service.

Executive priority

Treat internet-facing or externally integrated MetaGPT 0.8.1 deployments as an immediate priority. Restrict affected workflows and privileges while confirming vendor remediation. Internal deployments remain urgent when untrusted repositories, uploads, or automation inputs can reach the vulnerable method.

Technical view

CVE-2026-79408 is a CWE-78 OS command injection in MetaGPT 0.8.1. The vulnerable input is the path argument of RepoParser.rebuild_class_views() in metagpt/repo_parser.py. The supplied CVSS 3.1 score is 9.8, reflecting network reachability, low complexity, no privileges, no user interaction, and high confidentiality, integrity, and availability impact.

Likely exposure

Exposure exists where MetaGPT 0.8.1 invokes rebuild_class_views() with a path influenced by an untrusted user, API request, uploaded project, automation pipeline, or external integration. Installation alone does not prove exploitability; input reachability and process permissions determine practical risk.

Exploitation context

The supplied record is not in KEV, and the source bundle provides no evidence of active exploitation. It references a public vulnerability write-up, so technical details may be available publicly. Whether exploitation is remotely achievable in a particular deployment depends on how applications expose the affected method and its path input.

Researcher notes

The bundle identifies MetaGPT 0.8.1 but its structured affected-product fields are unspecified, and it names no fixed version. Validate package identity, call-path reachability, shell invocation behavior, and trust boundaries locally. Avoid assuming every MetaGPT installation is remotely exploitable solely from the CVSS vector.

Mitigation direction

  • Identify and isolate deployments running MetaGPT 0.8.1.
  • Prevent untrusted input from reaching rebuild_class_views() or disable affected workflows.
  • Run MetaGPT with minimal filesystem, network, and operating-system privileges.
  • Check MetaGPT vendor or project guidance for a patched release or approved mitigation.
  • Prioritize replacement or upgrade once a verified fixed version is documented.

Validation and detection

  • Inventory MetaGPT installations and confirm exact installed versions.
  • Locate calls to RepoParser.rebuild_class_views() and map every path input source.
  • Determine whether remote users or integrations can influence the path argument.
  • Review process, audit, and application logs for unexpected child processes or commands.
  • After remediation, safely verify that maliciously structured paths cannot trigger command execution.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-78: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-79408 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2026-79408Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.