CVE-2026-10546Network attack vector

Authenticated SSRF via DNS rebinding race

Published Jun 30, 2026 · Updated Jun 30, 2026

SSRF in the URL component of IBM Langflow OSS 1.0.0 through 1.9.3 allows remote authenticated users to access internal network resources. The component calls validate_url_for_ssrf() before RecursiveUrlLoader performs a separate DNS resolution for requests.get(), allowing a rebound hostname to change from an approved address to a restricted one. Remote authenticated users who can run the URL component can send requests to restricted services and receive their responses; winning the DNS race is required.

CVSS severity7.1
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in the URL component of IBM Langflow OSS 1.0.0 through 1.9.3 allows remote authenticated users to access internal network resources. The component calls validate_url_for_ssrf() before RecursiveUrlLoader performs a separate DNS resolution for requests.get(), allowing a rebound hostname to change from an approved address to a restricted one. Remote authenticated users who can run the URL component can send requests to restricted services and receive their responses; winning the DNS race is required.

The record

CVE
CVE-2026-10546
Published
Jun 30, 2026
Updated
Jun 30, 2026
Vendor
OpenBMC Project
Product
Langflow OSS
Classifications
CWE-918
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 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 <=1.9.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenBMC Project · Langflow OSSversion=1.0.0 <=1.9.3

Published CVSS scores

7.1IBM CorporationCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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)

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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