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PatchSiren cyber security CVE debrief

CVE-2026-17628 IBM CVE debrief

IBM Langflow OSS versions 1.0.0 through 1.10.2 are vulnerable to improper authentication, allowing remote authenticated attackers to change account passwords. This issue requires immediate attention from defenders responsible for Langflow OSS deployments, particularly those with remote authenticated access, to assess exposure and prioritize remediation. The vulnerability's impact can be significant, as it enables attackers to gain unauthorized access to sensitive systems. Defenders should verify and restrict remote authenticated access to sensitive systems, implement additional authentication and authorization controls, and review and update Langflow OSS to version 1.10.3 or later.

Vendor
IBM
Product
Langflow OSS
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-14
Original CVE updated
2026-11-03
Advisory published
2026-09-14
Advisory updated
2026-11-03

Who should care

Defenders responsible for Langflow OSS deployments, particularly those with remote authenticated access, should assess exposure and prioritize remediation.

Why it matters

This vulnerability allows a remote authenticated attacker to change the password of an account due to improper authentication in IBM Langflow OSS 1.0.0 through 1.10.2, requiring defenders to verify and remediate deployments.

  • Verify and restrict remote authenticated access to sensitive systems
  • Implement additional authentication and authorization controls
  • Review and update Langflow OSS to version 1.10.3 or later

Technical summary

IBM Langflow OSS versions 1.0.0 through 1.10.2 are vulnerable to improper authentication, which allows remote authenticated attackers to change account passwords. This vulnerability is significant because it enables attackers to gain unauthorized access to sensitive systems. The issue arises from inadequate authentication mechanisms in the affected versions, making it crucial for defenders to verify and remediate deployments promptly. The CVE record and NVD entry provide additional technical details about the vulnerability.

Defensive priority

Defenders should prioritize verifying and remediating this vulnerability in Langflow OSS deployments, particularly for systems with remote authenticated access.

Recommended defensive actions

  • Verify Langflow OSS version and check for updates to 1.10.3 or later
  • Review and restrict remote authenticated access to sensitive systems
  • Implement additional authentication and authorization controls

Evidence notes

The CVE record (CVE-2026-17628) and NVD entry (CVE-2026-17628 NVD vulnerability detail) provide details on the vulnerability, including its CVSS score of 5.4 and affected versions (IBM Langflow OSS 1.0.0 through 1.10.2). The official CVE Program record and NIST NVD detail page offer source-provided CVE metadata and source-specific vulnerability assessments. Defenders should verify the information and assess the potential impact on their deployments. The evidence is limited to publicly

Sources and references

Verified primary and authoritative sources

  • CVE-2026-17628 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-17628

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

  • CVE-2026-17628 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-17628

    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.