What is CVE-2026-25750?

CVE-2026-25750 is a high-severity vulnerability in Langchain Langsmith, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.1/10. Published 2026-03-04.

How severe is CVE-2026-25750?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Langchain Langsmith

CVE-2026-25750

Langchain Helm Charts are Helm charts for deploying Langchain applications on Kubernetes. Prior to langchain-ai/helm version 0.12.71, a URL parameter injection vulnerability existed in LangSmith Studio that could allow unauthorized access…

EPSS: 0.003 (21.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

Affected products

Langchain Langsmith
Langchain-ai Helm — versions < 0.12.71

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-25750?: CVE-2026-25750 is a high-severity vulnerability in Langchain Langsmith, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.1/10. Published 2026-03-04.
How severe is CVE-2026-25750?: High severity. CVSS v3 base score is 8.1 out of 10.