Vendor
LangChain vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 21 vulnerabilities in LangChain: 0 in the last 7 days and 7 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-118668, was published on 28 October 2026. 4 vulnerabilities in the last four weeks, up 33% on the four before (3). 2 technologies have a page of their own.
- Last 7 days
- 0
- Last 90 days
- 7
- Critical, all time
- 1
- Exploited in the wild
- 0
About LangChain
Framework for building applications with large language models through composable components and chains.
LangChain technologies
Latest LangChain vulnerabilities
- CVE-2026-118668: LangGraph API JavaScript custom authentication namespace bypasshighCVSS 4EPSS 0.4%
- CVE-2026-118667: LangChain LangGraph path traversal in RemoteGraph streamingmediumCVSS 4.3EPSS 0.4%
- CVE-2026-115885: LangGraph CLI credential exposure in verbose modemediumCVSS 5.4EPSS 0.1%
- CVE-2026-115883: LangGraph checkpoint savers namespace validation bypass in SQLite and PostgresmediumCVSS 4EPSS 0.3%
- CVE-2026-105799: LangChain @langchain/redis RediSearch injectionmediumCVSS 4
- CVE-2026-104873: LangChain LangGraph Python SDK resource authorization bypasshighCVSS 4EPSS 0.3%
- CVE-2026-55253: LangChain MongoDB NoSQL injection in list/search methodshighCVSS 7.7EPSS 0.5%
- CVE-2026-48121: LangChain LangGraph NoSQL injection in MongoDBSavermediumCVSS 6.7EPSS 0.4%
- CVE-2026-25528: PYSEC-2026-2584 - LangSmith Client SDK Affected by Server-Side Request Forgery via Tracing Header InjectionlowCVSS 3.1EPSS 0.3%
- CVE-2026-59152: LangChain LangSmith SDK arbitrary file read in TracingMiddlewaremediumCVSS 5EPSS 0.2%
- CVE-2026-48776: LangChain LangGraph SDK path traversal in URL constructionmediumCVSS 4.2EPSS 0.3%
- CVE-2026-48775: LangChain LangGraph unsafe deserialization in JsonPlusSerializermediumCVSS 6.8EPSS 0.7%
- CVE-2026-45134: LangChain LangSmith SDK untrusted deserialization in prompt pull methodshighCVSS 7.1EPSS 0.3%
- CVE-2026-41488: LangChain langchain-openai SSRF bypass via DNS rebinding in _url_to_sizelowCVSS 3.1EPSS 0.2%
- CVE-2026-41481: LangChain langchain-text-splitters SSRF redirect bypass in HTMLHeaderTextSplittermediumCVSS 6.5EPSS 0.4%
- CVE-2026-41182: LangChain LangSmith SDK sensitive information leak in streaming eventsmediumCVSS 5.3EPSS 0.4%
- CVE-2026-40087: LangChain incomplete f-string validation in prompt templatesmediumCVSS 5.3EPSS 0.3%
- CVE-2026-27022: LangChain RediSearch query injection in langgraph-checkpoint-redislowCVSS 3.1EPSS 0.5%
- CVE-2025-68665: LangChain serialization injection enables secret extractionhighCVSS 8.6EPSS 0.8%
- CVE-2025-68664: LangChain serialization injection vulnerability enables secret extraction in dumps/loads APIscriticalCVSS 9.3EPSS 42.9%
- CVE-2025-67644: PYSEC-2026-1530 - LangGraph's SQLite is vulnerable to SQL injection via metadata filter key in SQLite checkpointer list…highCVSS 7.3EPSS 2.3%
Most severe LangChain vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2025-68664: LangChain serialization injection vulnerability enables secret extraction in dumps/loads APIscriticalCVSS 9.3EPSS 42.9%
- CVE-2025-68665: LangChain serialization injection enables secret extractionhighCVSS 8.6EPSS 0.8%
- CVE-2026-55253: LangChain MongoDB NoSQL injection in list/search methodshighCVSS 7.7EPSS 0.5%
- CVE-2025-67644: PYSEC-2026-1530 - LangGraph's SQLite is vulnerable to SQL injection via metadata filter key in SQLite checkpointer list…highCVSS 7.3EPSS 2.3%
- CVE-2026-45134: LangChain LangSmith SDK untrusted deserialization in prompt pull methodshighCVSS 7.1EPSS 0.3%
- CVE-2026-118668: LangGraph API JavaScript custom authentication namespace bypasshighCVSS 4EPSS 0.4%
- CVE-2026-104873: LangChain LangGraph Python SDK resource authorization bypasshighCVSS 4EPSS 0.3%
- CVE-2026-48775: LangChain LangGraph unsafe deserialization in JsonPlusSerializermediumCVSS 6.8EPSS 0.7%
- CVE-2026-48121: LangChain LangGraph NoSQL injection in MongoDBSavermediumCVSS 6.7EPSS 0.4%
- CVE-2026-41481: LangChain langchain-text-splitters SSRF redirect bypass in HTMLHeaderTextSplittermediumCVSS 6.5EPSS 0.4%
Vulnerabilities per week
4 vulnerabilities in the last four weeks, up 33% on the four before (3). The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 1 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 1 | 0 | |
| 5 Oct 2026 | 1 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 2 | 0 | |
| 26 Oct 2026 | 2 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many LangChain vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/vendors/langchain)<a href="https://junglewise.ai/threats/vendors/langchain"><img src="https://junglewise.ai/threats/vendors/langchain/badge.svg" alt="LangChain vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/langchain.json, and this page as text at https://junglewise.ai/threats/vendors/langchain.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "LangChain vulnerabilities", https://junglewise.ai/threats/vendors/langchain, 9 November 2026.