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VulnerabilityPublished

CVE-2026-3340: IBM Langflow Desktop 1.0.0 through 1.8.4 IBM Langflow is vulnerable to server-side request forgery

Source GCVE Database

0
Authoritative record:CVE-2026-3340· Medium 6.5

Not known to be exploited · CVSS 6.5 Medium.

Data as of 27 Oct 2026, 00:31 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
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. Weaponised: 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 26 Oct 2026.

What to do

Affected software

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

AI-suggested

Until a fix is available, restrict access to the affected IBM Langflow Desktop versions to trusted users and monitor for suspicious activity related to unauthorized requests.

Description

IBM Langflow Desktop versions 1.0.0 through 1.8.4 are affected by a server-side request forgery (SSRF) vulnerability. This flaw allows an authenticated attacker to send unauthorized requests from the system, which could lead to network enumeration or assist in further attacks. The vulnerability has a medium severity rating with a CVSS score of 6.5. No patch or remediation information is currently provided.

References

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