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PatchSiren cyber security CVE debrief

CVE-2026-79723 IBM CVE debrief

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to obtain sensitive information due to improper validation of user-controlled API endpoints. The NVD entry is currently Undergoing Analysis. This vulnerability impacts IBM Langflow OSS deployments with authenticated user access, requiring defenders to assess exposure and prioritize verification. The CVE record and NVD entry provide limited information, and additional details may be available on the IBM PSIRT page.

Vendor
IBM
Product
Langflow OSS
CVSS
MEDIUM 5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-10
Original CVE updated
2026-09-11
Advisory published
2026-09-10
Advisory updated
2026-09-11

Who should care

Defenders responsible for IBM Langflow OSS deployments, particularly those with authenticated user access, should assess exposure and prioritize verification.

Why it matters

Defenders should prioritize verifying IBM Langflow OSS deployments and assessing exposure to authenticated users due to the potential for sensitive information disclosure.

  • Sensitive information disclosure to authenticated users
  • Potential data exposure requiring verification

Technical summary

IBM Langflow OSS 1.0.0 through 1.11.5 has a vulnerability that allows a remote authenticated attacker to obtain sensitive information due to improper validation of user-controlled API endpoints. This vulnerability requires defenders to prioritize verifying the inventory of IBM Langflow OSS deployments and assessing exposure to authenticated users. The vulnerability class involves improper validation of API endpoints, which can lead to sensitive information disclosure.

Defensive priority

Defenders should prioritize verifying the inventory of IBM Langflow OSS deployments and assessing exposure to authenticated users.

Recommended defensive actions

  • Verify the inventory of IBM Langflow OSS deployments
  • Assess exposure to authenticated users
  • Review API endpoint validation

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. The IBM PSIRT page may offer additional details. Defenders should verify the inventory of IBM Langflow OSS deployments and assess exposure to authenticated users. The NVD entry is currently Undergoing Analysis, and further verification is necessary to determine the full scope of the vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-79723 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-79723

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

  • CVE-2026-79723 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-79723

    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.