# langchain-core (PyPI) vulnerabilities

Source: https://junglewise.ai/threats/technologies/langchain-core  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/langchain-core.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 9 vulnerabilities in langchain-core (PyPI): 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-2026-26013, was published on 13 July 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 9 (1 critical, 0 exploited in the wild)

## About langchain-core (PyPI)

Python library for building applications with language models using composable components.

## Latest langchain-core (PyPI) vulnerabilities

- [CVE-2026-26013: PYSEC-2026-2562 - LangChain affected by SSRF via image_url token counting in ChatOpenAI.get_num_tokens_from_messages](https://junglewise.ai/threats/cve-2026-26013-langchain-chatopenai-server-side-request-forgery-via-image-token) (low, CVSS 3.1, published 13 Jul 2026)
- [CVE-2024-10940: PYSEC-2026-1517 - langchain-core allows unauthorized users to read arbitrary files from the host file system](https://junglewise.ai/threats/cve-2024-10940-langchain-core-allows-unauthorized-users-to-read-arbitrary-files) (low, CVSS 3, published 7 Jul 2026)
- [CVE-2024-1455: PYSEC-2026-1519 - LangChain's XMLOutputParser vulnerable to XML Entity Expansion](https://junglewise.ai/threats/cve-2024-1455-langchain-s-xmloutputparser-vulnerable-to-xml-entity-expansion) (low, CVSS 3, published 7 Jul 2026)
- [CVE-2026-44843: LangChain unsafe deserialization in load() via broad object allowlists](https://junglewise.ai/threats/cve-2026-44843-langchain-unsafe-deserialization-in-load-via-broad-object) (high, CVSS 8.2, published 26 May 2026)
- [CVE-2026-40087: LangChain incomplete f-string validation in prompt templates](https://junglewise.ai/threats/cve-2026-40087-langchain-incomplete-f-string-validation-in-prompt-templates) (medium, CVSS 5.3, published 9 Apr 2026)
- [CVE-2026-34070: LangChain langchain-core path traversal in prompt loading functions](https://junglewise.ai/threats/cve-2026-34070-langchain-langchain-core-path-traversal-in-prompt-loading) (high, CVSS 7.5, published 31 Mar 2026)
- [CVE-2025-68664: LangChain serialization injection vulnerability enables secret extraction in dumps/loads APIs](https://junglewise.ai/threats/cve-2025-68664-langchain-serialization-injection-vulnerability-enables-secret) (critical, CVSS 9.3, published 23 Dec 2025)
- [CVE-2025-65106: PYSEC-2026-1518 - LangChain Vulnerable to Template Injection via Attribute Access in Prompt Templates](https://junglewise.ai/threats/cve-2025-65106-langchain-vulnerable-to-template-injection-via-attribute-access) (medium, CVSS 4, published 21 Nov 2025)
- [CVE-2024-28088: LangChain directory traversal vulnerability](https://junglewise.ai/threats/cve-2024-28088-langchain-directory-traversal-vulnerability) (info, published 4 Mar 2024)

## Most severe langchain-core (PyPI) vulnerabilities

- [CVE-2025-68664: LangChain serialization injection vulnerability enables secret extraction in dumps/loads APIs](https://junglewise.ai/threats/cve-2025-68664-langchain-serialization-injection-vulnerability-enables-secret) (critical, CVSS 9.3, published 23 Dec 2025)
- [CVE-2026-44843: LangChain unsafe deserialization in load() via broad object allowlists](https://junglewise.ai/threats/cve-2026-44843-langchain-unsafe-deserialization-in-load-via-broad-object) (high, CVSS 8.2, published 26 May 2026)
- [CVE-2026-34070: LangChain langchain-core path traversal in prompt loading functions](https://junglewise.ai/threats/cve-2026-34070-langchain-langchain-core-path-traversal-in-prompt-loading) (high, CVSS 7.5, published 31 Mar 2026)
- [CVE-2026-40087: LangChain incomplete f-string validation in prompt templates](https://junglewise.ai/threats/cve-2026-40087-langchain-incomplete-f-string-validation-in-prompt-templates) (medium, CVSS 5.3, published 9 Apr 2026)
- [CVE-2025-65106: PYSEC-2026-1518 - LangChain Vulnerable to Template Injection via Attribute Access in Prompt Templates](https://junglewise.ai/threats/cve-2025-65106-langchain-vulnerable-to-template-injection-via-attribute-access) (medium, CVSS 4, published 21 Nov 2025)
- [CVE-2026-26013: PYSEC-2026-2562 - LangChain affected by SSRF via image_url token counting in ChatOpenAI.get_num_tokens_from_messages](https://junglewise.ai/threats/cve-2026-26013-langchain-chatopenai-server-side-request-forgery-via-image-token) (low, CVSS 3.1, published 13 Jul 2026)
- [CVE-2024-1455: PYSEC-2026-1519 - LangChain's XMLOutputParser vulnerable to XML Entity Expansion](https://junglewise.ai/threats/cve-2024-1455-langchain-s-xmloutputparser-vulnerable-to-xml-entity-expansion) (low, CVSS 3, published 7 Jul 2026)
- [CVE-2024-10940: PYSEC-2026-1517 - langchain-core allows unauthorized users to read arbitrary files from the host file system](https://junglewise.ai/threats/cve-2024-10940-langchain-core-allows-unauthorized-users-to-read-arbitrary-files) (low, CVSS 3, published 7 Jul 2026)
- [CVE-2024-28088: LangChain directory traversal vulnerability](https://junglewise.ai/threats/cve-2024-28088-langchain-directory-traversal-vulnerability) (info, published 4 Mar 2024)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other PyPI technologies

- [tensorflow (PyPI)](https://junglewise.ai/threats/technologies/pypi-tensorflow): 435 vulnerabilities
- [tensorflow-cpu (PyPI)](https://junglewise.ai/threats/technologies/tensorflow-cpu): 430 vulnerabilities
- [tensorflow-gpu (PyPI)](https://junglewise.ai/threats/technologies/tensorflow-gpu): 427 vulnerabilities
- [open-webui (PyPI)](https://junglewise.ai/threats/technologies/open-webui): 177 vulnerabilities
- [Django (PyPI)](https://junglewise.ai/threats/technologies/django): 173 vulnerabilities
- [apache-airflow (PyPI)](https://junglewise.ai/threats/technologies/apache-airflow): 159 vulnerabilities
- [pillow (PyPI)](https://junglewise.ai/threats/technologies/pillow): 125 vulnerabilities
- [praisonai (PyPI)](https://junglewise.ai/threats/technologies/pypi-praisonai): 120 vulnerabilities
- [vllm (PyPI)](https://junglewise.ai/threats/technologies/pypi-vllm): 117 vulnerabilities
- [plone (PyPI)](https://junglewise.ai/threats/technologies/pypi-plone): 101 vulnerabilities
- [mlflow (PyPI)](https://junglewise.ai/threats/technologies/mlflow): 88 vulnerabilities
- [picklescan (PyPI)](https://junglewise.ai/threats/technologies/picklescan): 86 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "langchain-core (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/langchain-core, 13 November 2026.