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VulnerabilityPublished

CVE-2026-3340: IBM Langflow Desktop · Server-Side Request Forgery (SSRF)

Affects IBM Langflow DesktopSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
IBMLangflow DesktopAffected
  • >=1.0.0 <=1.8.4
Fixed in–

CPE configurations (2)

  • cpe:2.3:a:ibm:langflow_desktop:1.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:*

AI-suggested

Until an official fix is released, limit access to the affected IBM Langflow Desktop versions to trusted users only and monitor for suspicious activity. Avoid exposing the application to untrusted networks or users.

Description

IBM Langflow Desktop versions 1.0.0 through 1.8.4 contain a server-side request forgery (SSRF) vulnerability (CWE-918). This vulnerability allows an authenticated attacker to send unauthorized requests from the affected system. Exploitation could enable network enumeration or facilitate other attacks. The vulnerability has a CVSS 3.1 base score of 6.5, indicating medium severity.

References

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