CVE-2026-40087 vulnerabilities

Vulnerabilities for packages: open-webui, py3-langchain...

GHSA-QH6H-P6C9-FF54 vulnerabilities

Vulnerabilities for packages: py3-langchain...

CVE-2026-34070 vulnerabilities

Vulnerabilities for packages: py3-langchain...

CVE-2026-40087 vulnerabilities

Vulnerabilities for packages: py3-langchain, open-webui...

GHSA-926X-3R5X-GFHW vulnerabilities

Vulnerabilities for packages: py3-langchain, open-webui...

CVE-2026-40087

LangChain is a framework for building agents and LLM-powered applications. Prior to 0.3.84 and 1.2.28, LangChain's f-string prompt-template validation was incomplete in two respects. First, some prompt template classes accepted f-string templates and formatted them without enforcing the same...

CVE-2026-40087 LangChain has incomplete f-string validation in prompt templates

LangChain is a framework for building agents and LLM-powered applications. Prior to 0.3.84 and 1.2.28, LangChain's f-string prompt-template validation was incomplete in two respects. First, some prompt template classes accepted f-string templates and formatted them without enforcing the same...

CVE-2026-40087

LangChain CVE-2026-40087 affects the f-string prompt-template validation prior to versions 0.3.84 and 1.2.28. The vulnerability arises because DictPromptTemplate and ImagePromptTemplate could accept templates containing attribute access or indexing expressions and evaluate them during formatting,...

CVE-2026-40087 LangChain has incomplete f-string validation in prompt templates

LangChain is a framework for building agents and LLM-powered applications. Prior to 0.3.84 and 1.2.28, LangChain's f-string prompt-template validation was incomplete in two respects. First, some prompt template classes accepted f-string templates and formatted them without enforcing the same...

CVE-2026-40087 LangChain has incomplete f-string validation in prompt templates

LangChain is a framework for building agents and LLM-powered applications. Prior to 0.3.84 and 1.2.28, LangChain's f-string prompt-template validation was incomplete in two respects. First, some prompt template classes accepted f-string templates and formatted them without enforcing the same...

Security Bulletin: Multiple Vulnerabilities in IBM watsonx Code Assistant On Prem

Summary Multiple vulnerabilities were addressed in IBM watsonx Code Assistant On Prem V5.3.1 Patch 1 Vulnerability Details CVEID:CVE-2024-58340 DESCRIPTION: LangChain versions up to and including 0.3.1 contain a regular expression denial-of-service ReDoS vulnerability in the MRKLOutputParser.pars...

LangChain 安全漏洞

LangChain is an open-source framework developed by LangChain for creating applications powered by large language models LLMs. Versions of LangChain prior to 0.3.84 and 1.2.28 contained security vulnerabilities. These vulnerabilities stemmed from incomplete validation of f-string template fields,...

accessiqlue (=2025.12.21154255), agent-builder (>=0.0.2 <=0.1.7) +334 more potentially affected by CVE-2026-40087 via langchain-core (>=0.4.0.dev0 <=1.2.24)

langchain-core PYPI version =0.4.0.dev0, =0.0.2, =0.1.0, =0.1.0, =0.1.1 - ai-benchmark-analyzer =2025.12.21193050 - ai-claim-essence =2025.12.20202921 - ai-design-insights =2025.12.21145447 - ai-mysql-translator =2025.12.21101721 - ai-reliability-analyzer =2025.12.21171415 - ai-risk-extractor...

accessiqlue (=2025.12.21154255), agent-builder (>=0.0.2 <=0.1.7) +320 more potentially affected by CVE-2026-40087 via langchain-core (>=1.0.0a8 <=1.2.24)

langchain-core PYPI version =1.0.0a8, =0.0.2, =0.1.0, =0.1.0, =0.1.1 - ai-benchmark-analyzer =2025.12.21193050 - ai-claim-essence =2025.12.20202921 - ai-design-insights =2025.12.21145447 - ai-mysql-translator =2025.12.21101721 - ai-reliability-analyzer =2025.12.21171415 - ai-risk-extractor...

a-data-processing (=0.0.1), a-mailx (=0.1.0) +1227 more potentially affected by CVE-2026-40087 via langchain-core (>=0.0.1 <=0.3.83)

langchain-core PYPI version =0.0.1, =0.1.0, =0.1.3, =0.1.0b0, =4.8.2, =0.1.3, =0.1.0, =3.2.0, =2.1.7, =0.0.2, =0.0.5 and more Source cves: CVE-2026-40087 Source advisory: OSV:GHSA-926X-3R5X-GFHW...

a-data-processing (=0.0.1), a-mailx (=0.1.0) +1227 more potentially affected by CVE-2026-40087 via langchain-core (>=0.0.1 <=0.3.83)

langchain-core PYPI version =0.0.1, =0.1.0, =0.1.3, =0.1.0b0, =4.8.2, =0.1.3, =0.1.0, =3.2.0, =2.1.7, =0.0.2, =0.0.5 and more Source cves: CVE-2026-40087 Source advisory: SNYK:PYTHON-LANGCHAINCORE-15953340...

Security Bulletin: LangChain Serialization Injection Vulnerability in dumps()/dumpd() (Fixed in 0.3.81 / 1.2.5) affects watsonx.data

Summary A serialization injection vulnerability in LangChain's dumps and dumpd functions pre-0.3.81 / 1.2.5 allows user-controlled data with 'lc' keys to be deserialized as objects. This issue is fixed in versions 0.3.81 and 1.2.5. This can affect watsonx.data. Vulnerability Details...

PT-2026-31716

Name of the Vulnerable Software and Affected Versions LangChain versions prior to 0.3.84 and prior to 1.2.28 Description LangChain's f-string prompt-template validation was incomplete, allowing attribute access and indexing expressions in templates for DictPromptTemplate and ImagePromptTemplate...

PT-2026-30458

Name of the Vulnerable Software and Affected Versions Dompdf affected versions not specified Description Dompdf is subject to a File Existence Oracle attack via the manipulation of the CSS @font-face directive. By submitting malicious HTML that repeatedly references local files using the file://...

LangChain Core < 1.2.22 Path Traversal (GHSA-qh6h-p6c9-ff54)

The version of LangChain Core installed on the remote host is prior to 1.2.22. It is, therefore, affected by a path traversal vulnerability: - Multiple functions in langchaincore.prompts.loading read files from paths embedded in deserialized config dicts without validating against directory...