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CVE-2026-3357

IBM Langflow Desktop FAISS Vector Store Remote Code Execution via malicious Pickle file

HIGH
8.8
CVSS Score
Published: April 8, 2026 at 12:19 AM UTC
Updated: July 24, 2026 at 11:10 PM UTC
2 products affected across 1 vendorLangflowLangflow Desktop

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Severity
HIGH8.8
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

IBM Langflow Desktop 1.6.0 through 1.8.2 Langflow could allow an authenticated user to execute arbitrary code on the system, caused by an insecure default setting which permits the deserialization of untrusted data in the FAISS component.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Langflow· Langflow
95%
1.6.0 ≤ v < 1.8.3
Affected range stops below 1.8.3, so it looks safe — our inference, not a vendor statement
Langflow Desktop· Langflow
60%
1.6.0 ≤ v ≤ 1.8.21.6.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://www.ibm.com/support/pages/node/7268428

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHibm
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-502

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