How severe is CVE-2026-107327?

CVE-2026-107327 has a CVSS score of 9.9/10, rated CRITICAL. Immediate patching is strongly recommended.

Which products are affected by CVE-2026-107327?

CVE-2026-107327 affects the following products: ibm langflow oss.

How do I patch CVE-2026-107327?

No patch has shipped for CVE-2026-107327 yet — track the ibm langflow oss advisory for a fixed release and apply the workarounds below in the meantime.

How do I detect CVE-2026-107327 across my infrastructure?

Inventory every ibm langflow oss deployment and check each version against the affected-products list above.

How do I mitigate CVE-2026-107327 if there is no patch (or I can't update yet)?

Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.

Is CVE-2026-107327 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-107327 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What type of vulnerability is CVE-2026-107327?

CVE-2026-107327 is classified as CWE-862 (CWE-862). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2026-107327?

CVE-2026-107327 affects ibm langflow oss (2 versions, e.g. 1.0.0, 1.12.4). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2026-107327 published, and has it been updated?

CVE-2026-107327 was published on October 29, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🛡️

Not in CISA KEV

CRITICAL severity

CVE-2026-107327 — Langflow Oss

CRITICAL

CVE-2026-107327 is a critical-severity (CVSS 9.9) CWE-862 vulnerability in ibm langflow oss. No vendor fix is recorded yet; mitigation options are listed below.

IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to execute arbitrary code due to missing authorization.

Published

Oct 29, 2026

Updated

Oct 29, 2026

Affected

1 product

Patched

See advisory

Exploits

None indexed

Exploitation data as of Oct 29, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to execute arbitrary code due to missing authorization.

Affected Products

1 product · 2 configurations

Application

langflow ossibm

2 versions

1.0.01.12.4

Detection & mitigation playbook

Vendor / appliance

Detect
Inventory every ibm langflow oss deployment and check each version against the affected-products list above.
Remediation status
No patch has shipped for CVE-2026-107327 yet — track the ibm langflow oss advisory for a fixed release and apply the workarounds below in the meantime.
Mitigate without a patch
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.

Frequently Asked Questions

IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to execute arbitrary code due to missing authorization.

O3 Security · Runtime Protection

Is CVE-2026-107327 being exploited in your environment?

Detect and block the exploit chain at execution, on systems you cannot patch yet.

Protect my workloads How runtime protection works

CVE-2026-107327 — Langflow Oss

Description

Affected Products

Detection & mitigation playbook

Detect

Remediation status

Mitigate without a patch

Frequently Asked Questions

Is CVE-2026-107327 being exploited in your environment?