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CVE-2026-34070

🗓️ 31 Mar 2026 02:01:49Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 2 Media mentions👁 277 Views🌐 WEB

LangChain Core path traversal in legacy load prompt allowed reading files; fixed in version 1.2.22.

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Detection
Affected
Refs
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Social
NVD
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Node
langchainlangchain_coreRange<1.2.22python
[
  {
    "vendor": "langchain-ai",
    "product": "langchain",
    "versions": [
      {
        "version": "< 1.2.22",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
template_pathnested/tmp/secret.txtPath traversal via template_path in load_template leading to reading arbitrary files.CWE-22
template_pathnested../../etc/secret.txtRelative path traversal in template_path enabling arbitrary file reads.CWE-22
examplesnested../../../../.docker/config.jsonPath traversal in examples to read arbitrary JSON/YAML configuration files with .json extension.CWE-22
examplesnested~/.azure/accessTokens.jsonPath traversal in examples potential to read sensitive JSON token files.CWE-22

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25 Aug 2026 13:18Current
7.5High risk
Vulners AI Score7.5
CVSS 3.17.5
EPSS0.01213
SSVC
277