How severe is CVE-2026-7871?

CVE-2026-7871 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-7871 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-7871?

CVE-2026-7871 affects Langflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-7871?

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

When was CVE-2026-7871 published?

CVE-2026-7871 was published on 2026-06-30 and last updated on 2026-07-02.

CVE-2026-7871

CVE-2026-7871 is a critical-severity vulnerability in Langflow with a CVSS 3.x base score of 9.8. 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Langflow
Published: 2026-06-30
Last modified: 2026-07-02

Description

IBM Langflow OSS 1.0.0 through 1.10.0 allows users with Redis access to execute arbitrary code with full application privileges, compromising all secrets, data, and system integrity.

Frequently asked questions

What is CVE-2026-7871?: IBM Langflow OSS 1.0.0 through 1.10.0 allows users with Redis access to execute arbitrary code with full application privileges, compromising all secrets, data, and system integrity.
How severe is CVE-2026-7871?: CVE-2026-7871 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-7871 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7871?: CVE-2026-7871 affects Langflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7871?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-7871 published?: CVE-2026-7871 was published on 2026-06-30 and last updated on 2026-07-02.

References

https://www.ibm.com/support/pages/node/7278443

Affected products (1)

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

More vulnerabilities in Langflow

CVE-2026-10134 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read…
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CVE-2026-12946 — Critical (CVSS 9.9): IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to inject arbitrary code on the system, due to the…
CVE-2026-13435 — Critical (CVSS 9.9): IBM Langflow OSS 1.0.0 through 1.10.1 contains an improper input validation vulnerability in the PythonREPL sandbox…
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All CVEs affecting Langflow →

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities

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CVE-2026-82222 — Critical (CVSS 10.0): Deserialization of Untrusted Data vulnerability in Liquid Web / StellarWP GiveWP allows Object Injection. This issue…
CVE-2026-69836 — Critical (CVSS 10.0): Deserialization of untrusted data in Microsoft Entra ID allows an unauthorized attacker to execute code over a network.
CVE-2026-17061 — Critical (CVSS 10.0): A Deserialization of Untrusted Data vulnerability affecting SIMULIA Execution Engine from Release 2023 through Release…
CVE-2026-11756 — Critical (CVSS 10.0): A Deserialization of Untrusted Data vulnerability affecting Station Launcher App in 3DEXPERIENCE platform from Release…
CVE-2026-41104 — Critical (CVSS 10.0): Deserialization of untrusted data in Microsoft Planetary Computer Pro allows an unauthorized attacker to disclose…

Browse all CWE-502 (Deserialization of Untrusted Data) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

3.19.213.118 (ipv4-addr)
56.155.73.159 (ipv4-addr)