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CVE-2026-104331medium5.4

Langflow OSS is affected by multiple vulnerabilities

Impact

IBM Langflow OSS versions 1.0.0 through 1.12.3 are vulnerable to server-side request forgery (SSRF), potentially allowing an authenticated attacker to send unauthorized requests. This may lead to network enumeration or facilitate other attacks.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

What to do

IBM strongly recommends addressing the vulnerability now by upgrading Langflow OSS to version 1.12.4. https://pypi.org/project/langflow/1.12.4/

For Langflow OSS versions 1.0.0 - 1.12.3, follow the Prepare to upgrade instructions and release-specific configuration changes https://docs.langflow.org/release-notes , including backing up your existing installation, then follow the Langflow OSS installation instructions https://docs.langflow.org/get-started-installation to install version 1.12.4 and test your flows.

ibm guidance

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

IBM · ibm

Langflow OSS

1 range
ibm version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

1.0.0 → through 1.12.3

semver versions

unaffected

unknown

Other versions: unknown

Product identifiers (CPE)cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:langflow_oss:1.12.3:*:*:*:*:*:*:*

Original source description

IBM Langflow OSS 1.0.0 through 1.12.3 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-104331

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-918 ↗

CWE-918 Server-Side Request Forgery (SSRF)

ibm

Related →
Contributing organizations · 1
ibm

Assigning organization

2026-10-29

What changed

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References

1 sources
www.ibm.com/support/pages/node/7293015
vendor-advisoryibm