Technology · LangChain
Langchain Core vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 3 vulnerabilities in Langchain Core: 0 in the last 7 days and 0 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-40087, was published on 9 April 2026.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 1
- Exploited in the wild
- 0
About Langchain Core
LangChain Core is a Python library providing abstractions for building language model applications.
Latest Langchain Core vulnerabilities
- CVE-2026-40087: LangChain incomplete f-string validation in prompt templatesmediumCVSS 5.3EPSS 0.3%
- 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%
Most severe Langchain Core 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-2026-40087: LangChain incomplete f-string validation in prompt templatesmediumCVSS 5.3EPSS 0.3%
Vulnerabilities per week
Nothing was published in the last eight weeks. 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 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 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 Core vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/langchain-langchain-core)<a href="https://junglewise.ai/threats/technologies/langchain-langchain-core"><img src="https://junglewise.ai/threats/technologies/langchain-langchain-core/badge.svg" alt="Langchain Core 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/technologies/langchain-langchain-core.json, and this page as text at https://junglewise.ai/threats/technologies/langchain-langchain-core.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 Core vulnerabilities", https://junglewise.ai/threats/technologies/langchain-langchain-core, 9 November 2026.