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Vulnerabilidades / CVE-2026-40190

crítica

CVE-2026-40190

LangSmith Client SDKs has Prototype Pollution in langsmith-sdk via Incomplete `__proto__` Guard in Internal lodash `set()`

Publicada Modificada CWE 1321
En la Trivy database desde, como mínimo, el 24 oct 2026, 07:11 UTCNo consta cuándo entró antes de ese build.

Severidad por fuente

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA5.6CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

La etiqueta propia de Trivy es CRITICAL. Crítica según NVD. Más baja según GHSA (media).

Descripción

LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. Prior to 0.5.18, the LangSmith JavaScript/TypeScript SDK (langsmith) contains an incomplete prototype pollution fix in its internally vendored lodash set() utility. The baseAssignValue() function only guards against the __proto__ key, but fails to prevent traversal via constructor.prototype. This allows an attacker who controls keys in data processed by the createAnonymizer() API to pollute Object.prototype, affecting all objects in the Node.js process. This vulnerability is fixed in 0.5.18.

Paquetes afectados y versiones corregidas

FuentePaqueteCorregido en
chainguardkibana-8.17, kibana-8.19, kibana-9.0 y 8 más8.17.10-r17 y 10 más
echo npm::Echo OSVlangsmith0.5.18
minimoskibana-8.19, kibana-9.3, langfuse-4 y 1 más8.19.16-r0 y 3 más
npm::GitHub Security Advisory npmlangsmith0.5.18
wolfilangfuse-33.164.0-r6
Mostrar las 18 entradas de 5 fuentes
FuentePaqueteCorregido en
chainguardkibana-8.178.17.10-r17
chainguardkibana-8.198.19.14-r2
chainguardkibana-9.09.0.8-r19
chainguardkibana-9.19.1.10-r12
chainguardkibana-9.29.2.7-r5
chainguardkibana-9.39.3.3-r4
chainguardlangfuse-22.95.12-r19
chainguardlangfuse-33.164.0-r6
chainguardlangfuse-fips-22.95.12-r22
chainguardlangfuse-fips-33.164.0-r3
chainguardlibrechat0.8.4-r5
echo npm::Echo OSVlangsmith0.5.18
minimoskibana-8.198.19.16-r0
minimoskibana-9.39.3.5-r0
minimoslangfuse-44.16.0-r0
minimostrigger-dev4.5.0-r0
npm::GitHub Security Advisory npmlangsmith0.5.18
wolfilangfuse-33.164.0-r6

Referencias

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.