HOMEVULNERABILITIESCVE-2026-3357
HIGH

CVE-2026-3357

CWE-502Published: April 8, 2026· Updated: Apr 8, 2026

8.8
CVSS v3.1
EPSS:0.07%probability of exploitation in 30 daysPercentile:22.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-3357 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Mentioned vendors (from description):
IBM
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (1)

Quick Facts

CVE IDCVE-2026-3357
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-502
CISA KEVNo
EPSS (30d)0.07%
PublishedApr 8, 2026

Related CVEs (CWE-502)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-3357 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.