gcdRadar
archive/Patch now/AIR-2026-0980
closedclosed 4 Mar 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-25750: URL parameter injection in Langchain Helm Charts exposing auth tokens

Langchain Helm Charts, LangSmith Studio

A URL parameter injection vulnerability in LangSmith Studio within Langchain Helm Charts prior to version 0.12.71 allowed attackers to steal bearer tokens, user IDs, and workspace IDs via malicious links. The issue impacted both cloud and self-hosted deployments.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
8.5
EPSS
<0.01 · top 72% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
4 Mar 2026
last update
4 Mar 2026
CVE ids
CVE-2026-25750other records

Timeline · 1

  1. 4 Mar 2026CVE-2026-25750: Langchain Helm Charts are Helm charts for deploying Langchain applications on Kubernetes.

Sources · 1

Advisories and databases

  1. 2026-03-04
    CVE-2026-25750: Langchain Helm Charts are Helm charts for deploying Langchain applications on Kubernetes.
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-25750

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
langchainlangsmithtoken-theft
dates
happened 4 Mar 2026 · first reported 4 Mar 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-25750: URL parameter injection in Langchain Helm Charts exposing auth tokens

https://gcdradar.vercel.app/incidents/cve-2026-25750-url-parameter-injection-in-langchain-helm-cha · AIR-2026-0980 · closed 2026-03-04

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-03-04
- AI role: Attack on AI
- Products: Langchain Helm Charts, LangSmith Studio
- CVE ids: CVE-2026-25750
- CVSS: 8.5

## Summary

A URL parameter injection vulnerability in LangSmith Studio within Langchain Helm Charts prior to version 0.12.71 allowed attackers to steal bearer tokens, user IDs, and workspace IDs via malicious links. The issue impacted both cloud and self-hosted deployments.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-03-04: CVE-2026-25750: Langchain Helm Charts are Helm charts for deploying Langchain applications on Kubernetes. (https://nvd.nist.gov/vuln/detail/CVE-2026-25750)

## Sources

- 2026-03-04 NVD: CVE-2026-25750: Langchain Helm Charts are Helm charts for deploying Langchain applications on Kubernetes. https://nvd.nist.gov/vuln/detail/CVE-2026-25750

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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