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CVE-2024-58340

🗓️ 12 Jan 2026 23:05:00Reported by VulnCheckType 
cve
 cve
🔗 web.nvd.nist.gov👁 15 Views🌐 WEB

LangChain up to 0.3.1 has a ReDoS in MRKLOutputParser.parse() via a backtracking regex.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
IBM Security Bulletins
Security Bulletin: Multiple Vulnerabilities in IBM watsonx Code Assistant On Prem
9 Apr 202610:57
ibm
Circl
CVE-2024-58340
13 Jan 202602:16
circl
CNNVD
LangChain 安全漏洞
12 Jan 202600:00
cnnvd
Cvelist
CVE-2024-58340 LangChain <= 0.3.1 MRKLOutputParser ReDoS
12 Jan 202623:05
cvelist
EUVD
EUVD-2026-2399
13 Jan 202600:30
euvd
NVD
CVE-2024-58340
12 Jan 202623:15
nvd
OSV
PYSEC-2026-75
12 Jan 202623:15
osv
Positive Technologies
PT-2026-2319
12 Jan 202600:00
ptsecurity
PyPA
PYSEC-2026-75
12 Jan 202623:15
pypa
RedhatCVE
CVE-2024-58340
13 Jan 202623:05
redhatcve
Rows per page
NVD
Vulners
CNA
Node
langchainlangchainRange0.3.1
[
  {
    "defaultStatus": "unknown",
    "product": "LangChain",
    "repo": "https://github.com/langchain-ai/langchain",
    "vendor": "LangChain AI",
    "versions": [
      {
        "lessThanOrEqual": "0.3.1",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
MRKLOutputParser.parse() input textpathlibs/langchain/langchain/agents/mrkl/output_parser.pyRegular expression DoS in MRKLOutputParser.parse due to backtracking-prone regex when extracting tool actions (LangChain <= 0.3.1).CWE-1333

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05 Mar 2026 01:29Current
6.7Medium risk
Vulners AI Score6.7
CVSS 3.17.5
CVSS 48.7
EPSS0.00108
SSVC
15