CVE-2024-1455

Summary

A vulnerability in the langchain-ai/langchain repository allows for a Billion Laughs Attack, a type of XML External Entity (XXE) exploitation. By nesting multiple layers of entities within an XML document, an attacker can cause the XML parser to consume excessive CPU and memory resources, leading to a denial of service (DoS).

Affected Software

Weaknesses

• CWE-776: CWE-776 Improper Restriction of Recursive Entity References in DTDs

ADP Enrichment

CVE Program Container

Additional References

• https://huntr.com/bounties/4353571f-c70d-4bfd-ac08-3a89cecb45b6
• https://github.com/langchain-ai/langchain/commit/727d5023ce88e18e3074ef620a98137d26ff92a3

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

References

• https://huntr.com/bounties/4353571f-c70d-4bfd-ac08-3a89cecb45b6
• https://github.com/langchain-ai/langchain/commit/727d5023ce88e18e3074ef620a98137d26ff92a3

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