CVE-2024-1455 - Vulnerability Details - OpenCVE

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).

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

No data.

No data.

No data.

References

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

History

No history.

MITRE

Status: PUBLISHED

Assigner: @huntr_ai

Published: 2024-03-26T14:03:46.647Z

Updated: 2024-08-15T15:56:19.154Z

Reserved: 2024-02-12T16:51:50.188Z

Link: CVE-2024-1455

Vulnrichment

Updated: 2024-08-01T18:40:21.288Z

NVD

Status : Awaiting Analysis

Published: 2024-03-26T14:15:08.450

Modified: 2024-11-21T08:50:37.310

Link: CVE-2024-1455

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-1455", "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "state": "PUBLISHED", "assignerShortName": "@huntr_ai", "dateReserved": "2024-02-12T16:51:50.188Z", "datePublished": "2024-03-26T14:03:46.647Z", "dateUpdated": "2024-08-15T15:56:19.154Z"}, "containers": {"cna": {"title": "Billion Laughs Attack leading to DoS in langchain-ai/langchain", "providerMetadata": {"orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntr_ai", "dateUpdated": "2024-04-16T11:10:22.131Z"}, "descriptions": [{"lang": "en", "value": "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": [{"vendor": "langchain-ai", "product": "langchain-ai/langchain", "versions": [{"version": "unspecified", "lessThan": "0.1.35", "status": "affected", "versionType": "custom"}]}], "references": [{"url": "https://huntr.com/bounties/4353571f-c70d-4bfd-ac08-3a89cecb45b6"}, {"url": "https://github.com/langchain-ai/langchain/commit/727d5023ce88e18e3074ef620a98137d26ff92a3"}], "metrics": [{"cvssV3_0": {"version": "3.0", "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.9, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-776 Improper Restriction of Recursive Entity References in DTDs", "cweId": "CWE-776"}]}], "source": {"advisory": "4353571f-c70d-4bfd-ac08-3a89cecb45b6", "discovery": "EXTERNAL"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-01T18:40:21.288Z"}, "title": "CVE Program Container", "references": [{"url": "https://huntr.com/bounties/4353571f-c70d-4bfd-ac08-3a89cecb45b6", "tags": ["x_transferred"]}, {"url": "https://github.com/langchain-ai/langchain/commit/727d5023ce88e18e3074ef620a98137d26ff92a3", "tags": ["x_transferred"]}]}, {"affected": [{"vendor": "langchain-ai", "product": "langchain-ai\\/langchain", "cpes": ["cpe:2.3:a:langchain-ai:langchain-ai\\/langchain:*:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "0", "status": "affected", "lessThan": "0.1.35", "versionType": "custom"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-08-15T15:55:06.717038Z", "id": "CVE-2024-1455", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-08-15T15:56:19.154Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://huntr.com/bounties/4353571f-c70d-4bfd-ac08-3a89cecb45b6", "tags": ["x_transferred"]}, {"url": "https://github.com/langchain-ai/langchain/commit/727d5023ce88e18e3074ef620a98137d26ff92a3", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-01T18:40:21.288Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-1455", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-08-15T15:55:06.717038Z"}}}], "affected": [{"cpes": ["cpe:2.3:a:langchain-ai:langchain-ai\\/langchain:*:*:*:*:*:*:*:*"], "vendor": "langchain-ai", "product": "langchain-ai\\/langchain", "versions": [{"status": "affected", "version": "0", "lessThan": "0.1.35", "versionType": "custom"}], "defaultStatus": "unknown"}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-08-15T15:56:13.148Z"}}], "cna": {"title": "Billion Laughs Attack leading to DoS in langchain-ai/langchain", "source": {"advisory": "4353571f-c70d-4bfd-ac08-3a89cecb45b6", "discovery": "EXTERNAL"}, "metrics": [{"cvssV3_0": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "langchain-ai", "product": "langchain-ai/langchain", "versions": [{"status": "affected", "version": "unspecified", "lessThan": "0.1.35", "versionType": "custom"}]}], "references": [{"url": "https://huntr.com/bounties/4353571f-c70d-4bfd-ac08-3a89cecb45b6"}, {"url": "https://github.com/langchain-ai/langchain/commit/727d5023ce88e18e3074ef620a98137d26ff92a3"}], "descriptions": [{"lang": "en", "value": "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). "}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-776", "description": "CWE-776 Improper Restriction of Recursive Entity References in DTDs"}]}], "providerMetadata": {"orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntr_ai", "dateUpdated": "2024-04-16T11:10:22.131Z"}}}, "cveMetadata": {"cveId": "CVE-2024-1455", "state": "PUBLISHED", "dateUpdated": "2024-08-15T15:56:19.154Z", "dateReserved": "2024-02-12T16:51:50.188Z", "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "datePublished": "2024-03-26T14:03:46.647Z", "assignerShortName": "@huntr_ai"}, "dataVersion": "5.1"}

{"descriptions": [{"lang": "en", "value": "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). "}, {"lang": "es", "value": "XMLOutputParser en LangChain utiliza el m\u00f3dulo etree del analizador XML en la biblioteca est\u00e1ndar de Python que tiene algunas vulnerabilidades XML; consulte: https://docs.python.org/3/library/xml.html Esto afecta principalmente a los usuarios que combinan un LLM (o agente) con `XMLOutputParser` y exponen el componente a trav\u00e9s de un endpoint en un servicio web. Esto permitir\u00eda que una parte malintencionada intentara manipular el LLM para producir un payload malicioso para el analizador que comprometer\u00eda la disponibilidad del servicio. Un ataque exitoso se basa en: 1. Uso de XMLOutputParser 2. Pasar entradas maliciosas al XMLOutputParser, ya sea directamente o intentando manipular un LLM para que lo haga en nombre del usuario 3. Exponer el componente a trav\u00e9s de un servicio web"}], "id": "CVE-2024-1455", "lastModified": "2024-11-21T08:50:37.310", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security@huntr.dev", "type": "Secondary"}]}, "published": "2024-03-26T14:15:08.450", "references": [{"source": "security@huntr.dev", "url": "https://github.com/langchain-ai/langchain/commit/727d5023ce88e18e3074ef620a98137d26ff92a3"}, {"source": "security@huntr.dev", "url": "https://huntr.com/bounties/4353571f-c70d-4bfd-ac08-3a89cecb45b6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/langchain-ai/langchain/commit/727d5023ce88e18e3074ef620a98137d26ff92a3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://huntr.com/bounties/4353571f-c70d-4bfd-ac08-3a89cecb45b6"}], "sourceIdentifier": "security@huntr.dev", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-776"}], "source": "security@huntr.dev", "type": "Secondary"}]}