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TI-2026-82547 Aliases CVE-2026-104317GHSA-56h6-99v2-hc4g

Deserialization flaw in IBM Langflow OSS allows remote code execution

Priority MEDIUM 44CWE-502Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-502.

Summary

IBM Langflow OSS versions 1.0.0 through 1.12.3 are affected. The flaw is the deserialization of untrusted data (CWE-502). A remote attacker who can reach the message broker can execute arbitrary code on the system without authentication.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote attacker who could reach the message broker to execute arbitrary code on the system due to the deserialization of untrusted data.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00592 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMLangflow OSS1.0.0 – 1.12.3—No fix listedCNA
  • Langflow OSS VendorIBM Affected 1.0.0 – 1.12.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*1.0.0 to before 1.12.4VulnerableLangflow
  • cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* Versions 1.0.0 to before 1.12.4 Vulnerable ·Langflow

Remediation

The sources list no fixed version for IBM Langflow OSS.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    IBM Langflow OSS — ibm.com/support/pages/node/7293015

    16 records Highest priority Priority MEDIUM 5 MEDIUM, 11 LOW

    Other records, highest priority first

    • TI-2026-82551 Command injection in IBM Langflow OSS enables remote code executionPriority MEDIUM 50
    • TI-2026-82549 Code injection in IBM Langflow OSS lets attackers run codePriority MEDIUM 41
    • TI-2026-82548 Deserialization flaw in IBM Langflow OSS allows code executionPriority MEDIUM 41
    Show all 16 records → Advisory →

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-104317
  2. 2026-10-29 Alias added: GHSA-56h6-99v2-hc4g
  3. 2026-10-30 CISA SSVC decision points changed
  4. 2026-10-30 Priority changed: MEDIUM → LOW
  5. 2026-10-30 CVSS score added · NVD
  6. 2026-10-30 Priority changed: LOW → MEDIUM
  7. 2026-10-30 CISA SSVC decision points changed

References

Patch 1

  • TI-2026-08085 Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-23774 IBM Aspera Faspex code execution KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-03794 Improper authentication in IBM Data Risk Manager KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-03441 Code injection in IBM Planning Analytics KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-03639 Improper handling of exceptional conditions in Apache Struts KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-06198 Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT… KEVCVSS 3.1CRITICAL 9.8
See all 9711 →

Sources

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