How severe is CVE-2026-10546?

CVE-2026-10546 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2026-10546 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-10546?

CVE-2026-10546 affects Langflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-10546?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-10546 published?

CVE-2026-10546 was published on 2026-06-30 and last updated on 2026-07-02.

CVE-2026-10546

CVE-2026-10546 is a high-severity vulnerability in Langflow with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Langflow
Published: 2026-06-30
Last modified: 2026-07-02

Description

IBM Langflow OSS 1.0.0 through 1.9.3 contains a Server-Side Request Forgery (SSRF) vulnerability in the URL component ( src/lfx/src/lfx/components/data_source/url.py ) due to a Time-of-Check/Time-of-Use (TOCTOU) race condition that can be exploited via DNS rebinding.

Frequently asked questions

What is CVE-2026-10546?: IBM Langflow OSS 1.0.0 through 1.9.3 contains a Server-Side Request Forgery (SSRF) vulnerability in the URL component ( src/lfx/src/lfx/components/data_source/url.py ) due to a Time-of-Check/Time-of-Use (TOCTOU) race condition that can be exploited via DNS rebinding.
How severe is CVE-2026-10546?: CVE-2026-10546 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2026-10546 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-10546?: CVE-2026-10546 affects Langflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-10546?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-10546 published?: CVE-2026-10546 was published on 2026-06-30 and last updated on 2026-07-02.

References

https://www.ibm.com/support/pages/node/7277560

Affected products (1)

cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*

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