CVE-2026-3341Network attack vector

Authenticated internal-service access via DNS rebinding

Published Jun 11, 2026 · Updated Jun 11, 2026

SSRF in IBM Langflow Desktop 1.0.0 through 1.9.2 allows remote authenticated users to access internal services via crafted URLs. The validate_url_for_ssrf function resolves a hostname with socket.getaddrinfo, but httpx performs a separate lookup when connecting, allowing a TTL=0 domain to change from a public to a private address. Authenticated access to an affected default installation is required; successful requests can probe localhost, private networks, or cloud metadata.

CVSS severity5.4
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in IBM Langflow Desktop 1.0.0 through 1.9.2 allows remote authenticated users to access internal services via crafted URLs. The validate_url_for_ssrf function resolves a hostname with socket.getaddrinfo, but httpx performs a separate lookup when connecting, allowing a TTL=0 domain to change from a public to a private address. Authenticated access to an affected default installation is required; successful requests can probe localhost, private networks, or cloud metadata.

The record

CVE
CVE-2026-3341
Published
Jun 11, 2026
Updated
Jun 11, 2026
Vendor
OpenBMC Project
Product
Langflow Desktop
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0 <=1.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenBMC Project · Langflow Desktopversion=1.0.0 <=1.9.2

Published CVSS scores

5.4IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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