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CVE-2026-17623 IBM CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-05T17:16:44.663Z and has not been modified since then. IBM Langflow OSS versions 1.0.0 through 1.10.3 are affected by a vulnerability that allows remote authenticated attackers to execute arbitrary commands due to improper validation of the command field in MCP server configurations. Organizations should verify affected product deployments, review official advisories, and plan for vendor-supported updates or mitigations. Evidence is limited; further verification is recommended.

Vendor
IBM
Product
Langflow OSS
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-05
Original CVE updated
2026-08-06
Advisory published
2026-08-05
Advisory updated
2026-08-06

Who should care

Organizations using IBM Langflow OSS 1.0.0 through 1.10.3, particularly those with operational deployments, should be aware of this vulnerability and take necessary precautions. This includes validating command fields in MCP server configurations, restricting access to authenticated users only, and monitoring for updates and patches from IBM. Security teams and vulnerability management teams should prioritize this issue for potential exposure and plan for compensating controls if necessary.

Technical summary

IBM Langflow OSS 1.0.0 through 1.10.3 has a vulnerability where improper validation of the command field in MCP server configurations could allow a remote authenticated attacker to execute arbitrary commands. This vulnerability affects organizations using these versions, requiring them to validate command fields and restrict access to MCP server configurations.

Defensive priority

Organizations using IBM Langflow OSS 1.0.0 through 1.10.3 should validate command fields in MCP server configurations to prevent potential arbitrary command execution.

Recommended defensive actions

  • Validate command fields in MCP server configurations to prevent potential arbitrary command execution
  • Restrict access to MCP server configurations to authenticated users only
  • Monitor IBM Langflow OSS for updates and patches

Evidence notes

The CVE description indicates IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of the command field in MCP server configurations. Evidence is limited; further verification is recommended. Organizations should verify the affected product deployments, review official advisories, and plan for vendor-supported updates or mitigations.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-17623 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-17623

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-17623 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-17623

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.