CVE-2026-81265Network attack vector

Internal resource access via unchecked provider URLs

Published Sep 10, 2026 · Updated Sep 10, 2026

SSRF in IBM Langflow OSS 1.0.0 through 1.11.5 allows attackers to reach internal resources through server-side URL fetches. The affected provider URL paths issue credential-bearing requests without strict destination validation and DNS-pinned connections. The exact connector and authentication gate assigned to this CVE are undisclosed; impact is bounded to unauthorized server-originated access and resulting information exposure.

CVSS severityUnavailable
Unscored
EPSS probability0.23%
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 OSS 1.0.0 through 1.11.5 allows attackers to reach internal resources through server-side URL fetches. The affected provider URL paths issue credential-bearing requests without strict destination validation and DNS-pinned connections. The exact connector and authentication gate assigned to this CVE are undisclosed; impact is bounded to unauthorized server-originated access and resulting information exposure.

The record

CVE
CVE-2026-81265
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
IBM
Product
Langflow OSS
Classifications
CWE-918, T1190
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 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 <=1.11.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

IBM · Langflow OSSversion=1.0.0 <=1.11.5

Published CVSS scores

No CVSS assessment is available in this record.

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
PrivilegesUnavailable
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.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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