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TI-2026-01634 Aliases CVE-2026-1977GHSA-rcq9-4v75-4fh5

isaacwasserman mcp-vegalite-server visualize_data eval code injection

Priority MEDIUM 57CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

A security vulnerability has been detected in isaacwasserman mcp-vegalite-server up to 16aefed598b8cd897b78e99b907f6e2984572c61. Affected by this vulnerability is the function eval of the component visualize_data. Such manipulation of the argument vegalite_specification leads to code injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00273 19th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
isaacwassermanmcp-vegalite-server16aefed598b8cd897b78e99b907f6e2984572c61—No fix listedCNA
  • mcp-vegalite-server Vendorisaacwasserman Affected 16aefed598b8cd897b78e99b907f6e2984572c61 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-1977
  2. 2026-10-03 Alias added: GHSA-rcq9-4v75-4fh5

References

Exploit 1

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences