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18 vulnerabilities found for langchain by langchain-ai
CVE-2026-55443 (GCVE-0-2026-55443)
Vulnerability from nvd – Published: 2026-06-22 17:21 – Updated: 2026-06-22 19:52
VLAI
EPSS
VEX
Title
LangChain: Path traversal and sandbox escape in LangChain file-search middleware and loaders
Summary
LangChain is a framework for building agents and LLM-powered applications. Prior to 1.3.9, several LangChain components that resolve filesystem paths or expand search patterns do not consistently confine the resolved path to the intended root directory. Affected behaviors include: a file-search agent middleware that validates a starting directory but not the search pattern or the resolved target of matched files, so glob patterns and symlinks can reach files outside the configured root; prompt- and chain/agent-configuration loaders that accept path fields and resolve them without confining the result to a trusted base or rejecting symlink targets; and path-prefix authorization checks that compare by string prefix without a path-segment boundary, so a sibling path sharing the prefix is accepted. When these components receive path values, search patterns, or workspace contents influenced by an untrusted source — including an LLM acting on untrusted input — the result can be disclosure of files outside the intended boundary. This vulnerability is fixed in 1.3.9.
Severity
5.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 19:51 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
< 1.3.9
|
|
| langchain-ai | langchain-anthropic |
Affected:
< 1.4.6
|
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CVE-2026-44843 (GCVE-0-2026-44843)
Vulnerability from nvd – Published: 2026-05-26 19:47 – Updated: 2026-05-27 14:07
VLAI
EPSS
VEX
Title
LangChain: Unsafe deserialization of attacker-controlled LangChain objects through overly broad `load()` allowlists
Summary
LangChain is a framework for building agents and LLM-powered applications. Prior to 0.3.85 and 1.3.3, LangChain contains older runtime code paths that deserialize run inputs, run outputs, or other application-controlled payloads using overly broad object allowlists. These paths may call load() with allowed_objects="all". This does not enable arbitrary Python object deserialization, but it does allow any trusted LangChain-serializable object to be revived, which is broader than these runtime paths require. As a result, attacker-supplied LangChain serialized constructor dictionaries may cause trusted runtime paths to instantiate classes with untrusted constructor arguments. This vulnerability is fixed in 0.3.85 and 1.3.3.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-27 14:06 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
< 0.3.85
Affected: >= 1.0.0a1, < 1.3.3 |
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CVE-2026-40087 (GCVE-0-2026-40087)
Vulnerability from nvd – Published: 2026-04-09 19:34 – Updated: 2026-04-14 14:48
VLAI
EPSS
VEX
Title
LangChain has incomplete f-string validation in prompt templates
Summary
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 attribute-access validation as PromptTemplate. In particular, DictPromptTemplate and ImagePromptTemplate could accept templates containing attribute access or indexing expressions and subsequently evaluate those expressions during formatting. Second, f-string validation based on parsed top-level field names did not reject nested replacement fields inside format specifiers. In this pattern, the nested replacement field appears in the format specifier rather than in the top-level field name. As a result, earlier validation based on parsed field names did not reject the template even though Python formatting would still attempt to resolve the nested expression at runtime. This vulnerability is fixed in 0.3.84 and 1.2.28.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-14 14:47 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/pull/36612 | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/pull/36613 | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/release… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
< 0.3.83
Affected: >= 1.0.0a1, < 1.2.28 |
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CVE-2026-34070 (GCVE-0-2026-34070)
Vulnerability from nvd – Published: 2026-03-31 02:01 – Updated: 2026-08-25 12:05
VLAI
EPSS
VEX
Title
LangChain Core has Path Traversal vulnerabilites in legacy `load_prompt` functions
Summary
LangChain is a framework for building agents and LLM-powered applications. Prior to version 1.2.22, multiple functions in langchain_core.prompts.loading read files from paths embedded in deserialized config dicts without validating against directory traversal or absolute path injection. When an application passes user-influenced prompt configurations to load_prompt() or load_prompt_from_config(), an attacker can read arbitrary files on the host filesystem, constrained only by file-extension checks (.txt for templates, .json/.yaml for examples). This issue has been patched in version 1.2.22.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-31 15:17 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/release… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-34070 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2453287 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:24766 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59159 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:37275 | vendor-advisoryx_refsource_REDHAT |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
< 1.2.22
|
|
| Red Hat | Red Hat Ansible Automation Platform 2.5 |
Unaffected:
1780082949 , < *
(rpm)
Unaffected: 1787229385 , < * (rpm) cpe:/a:redhat:ansible_automation_platform:2.5::el8 |
|
| Red Hat | Red Hat OpenShift AI 3.3 |
Unaffected:
1782471587 , < *
(rpm)
cpe:/a:redhat:openshift_ai:3.3::el9 |
|
| Red Hat | Red Hat OpenShift AI 3.3 |
Unaffected:
1782471606 , < *
(rpm)
cpe:/a:redhat:openshift_ai:3.3::el9 |
|
| Red Hat | OpenShift Lightspeed |
cpe:/a:redhat:openshift_lightspeed
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai
|
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CVE-2026-26013 (GCVE-0-2026-26013)
Vulnerability from nvd – Published: 2026-02-10 21:51 – Updated: 2026-02-11 21:26
VLAI
EPSS
VEX
Title
LangChain affected by SSRF via image_url token counting in ChatOpenAI.get_num_tokens_from_messages
Summary
LangChain is a framework for building agents and LLM-powered applications. Prior to 1.2.11, the ChatOpenAI.get_num_tokens_from_messages() method fetches arbitrary image_url values without validation when computing token counts for vision-enabled models. This allows attackers to trigger Server-Side Request Forgery (SSRF) attacks by providing malicious image URLs in user input. This vulnerability is fixed in 1.2.11.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-11 21:26 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
< 1.2.11
|
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CVE-2025-68664 (GCVE-0-2025-68664)
Vulnerability from nvd – Published: 2025-12-23 22:47 – Updated: 2025-12-24 14:40
VLAI
EPSS
VEX
Title
LangChain serialization injection vulnerability enables secret extraction in dumps/loads APIs
Summary
LangChain is a framework for building agents and LLM-powered applications. Prior to versions 0.3.81 and 1.2.5, a serialization injection vulnerability exists in LangChain's dumps() and dumpd() functions. The functions do not escape dictionaries with 'lc' keys when serializing free-form dictionaries. The 'lc' key is used internally by LangChain to mark serialized objects. When user-controlled data contains this key structure, it is treated as a legitimate LangChain object during deserialization rather than plain user data. This issue has been patched in versions 0.3.81 and 1.2.5.
Severity
9.3 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-24 14:40 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/pull/34455 | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/pull/34458 | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
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| https://github.com/langchain-ai/langchain/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
>= 1.0.0, < 1.2.5
Affected: < 0.3.81 |
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CVE-2025-65106 (GCVE-0-2025-65106)
Vulnerability from nvd – Published: 2025-11-21 21:43 – Updated: 2025-11-21 21:53
VLAI
EPSS
VEX
Title
LangChain Vulnerable to Template Injection via Attribute Access in Prompt Templates
Summary
LangChain is a framework for building agents and LLM-powered applications. From versions 0.3.79 and prior and 1.0.0 to 1.0.6, a template injection vulnerability exists in LangChain's prompt template system that allows attackers to access Python object internals through template syntax. This vulnerability affects applications that accept untrusted template strings (not just template variables) in ChatPromptTemplate and related prompt template classes. This issue has been patched in versions 0.3.80 and 1.0.7.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-21 21:53 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
>= 1.0.0, < 1.0.7
Affected: < 0.3.80 |
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CVE-2024-8309 (GCVE-0-2024-8309)
Vulnerability from nvd – Published: 2024-10-29 12:50 – Updated: 2025-10-15 12:50
VLAI
EPSS
VEX
Title
SQL Injection in langchain-ai/langchain
Summary
A vulnerability in the GraphCypherQAChain class of langchain-ai/langchain version 0.2.5 allows for SQL injection through prompt injection. This vulnerability can lead to unauthorized data manipulation, data exfiltration, denial of service (DoS) by deleting all data, breaches in multi-tenant security environments, and data integrity issues. Attackers can create, update, or delete nodes and relationships without proper authorization, extract sensitive data, disrupt services, access data across different tenants, and compromise the integrity of the database.
Severity
4.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-29 13:50 UTC
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain-ai/langchain |
Affected:
unspecified , < 0.3.0
(custom)
|
|
| langchain-ai | langchain |
Affected:
0 , < 0.3.0
(custom)
cpe:2.3:a:langchain-ai:langchain:*:*:*:*:*:*:*:* |
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CVE-2024-3571 (GCVE-0-2024-3571)
Vulnerability from nvd – Published: 2024-04-16 00:00 – Updated: 2024-08-01 20:12
VLAI
EPSS
VEX
Title
Path Traversal in langchain-ai/langchain
Summary
langchain-ai/langchain is vulnerable to path traversal due to improper limitation of a pathname to a restricted directory ('Path Traversal') in its LocalFileStore functionality. An attacker can leverage this vulnerability to read or write files anywhere on the filesystem, potentially leading to information disclosure or remote code execution. The issue lies in the handling of file paths in the mset and mget methods, where user-supplied input is not adequately sanitized, allowing directory traversal sequences to reach unintended directories.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-17 19:16 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain-ai/langchain |
Affected:
unspecified , < 0.0.353
(custom)
|
|
| langchain-ai | langchain |
Affected:
0.0.351
cpe:2.3:a:langchain-ai:langchain:0.0.351:*:*:*:*:*:*:* |
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CVE-2026-55443 (GCVE-0-2026-55443)
Vulnerability from cvelistv5 – Published: 2026-06-22 17:21 – Updated: 2026-06-22 19:52
VLAI
EPSS
VEX
Title
LangChain: Path traversal and sandbox escape in LangChain file-search middleware and loaders
Summary
LangChain is a framework for building agents and LLM-powered applications. Prior to 1.3.9, several LangChain components that resolve filesystem paths or expand search patterns do not consistently confine the resolved path to the intended root directory. Affected behaviors include: a file-search agent middleware that validates a starting directory but not the search pattern or the resolved target of matched files, so glob patterns and symlinks can reach files outside the configured root; prompt- and chain/agent-configuration loaders that accept path fields and resolve them without confining the result to a trusted base or rejecting symlink targets; and path-prefix authorization checks that compare by string prefix without a path-segment boundary, so a sibling path sharing the prefix is accepted. When these components receive path values, search patterns, or workspace contents influenced by an untrusted source — including an LLM acting on untrusted input — the result can be disclosure of files outside the intended boundary. This vulnerability is fixed in 1.3.9.
Severity
5.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 19:51 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
< 1.3.9
|
|
| langchain-ai | langchain-anthropic |
Affected:
< 1.4.6
|
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CVE-2026-44843 (GCVE-0-2026-44843)
Vulnerability from cvelistv5 – Published: 2026-05-26 19:47 – Updated: 2026-05-27 14:07
VLAI
EPSS
VEX
Title
LangChain: Unsafe deserialization of attacker-controlled LangChain objects through overly broad `load()` allowlists
Summary
LangChain is a framework for building agents and LLM-powered applications. Prior to 0.3.85 and 1.3.3, LangChain contains older runtime code paths that deserialize run inputs, run outputs, or other application-controlled payloads using overly broad object allowlists. These paths may call load() with allowed_objects="all". This does not enable arbitrary Python object deserialization, but it does allow any trusted LangChain-serializable object to be revived, which is broader than these runtime paths require. As a result, attacker-supplied LangChain serialized constructor dictionaries may cause trusted runtime paths to instantiate classes with untrusted constructor arguments. This vulnerability is fixed in 0.3.85 and 1.3.3.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-27 14:06 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
< 0.3.85
Affected: >= 1.0.0a1, < 1.3.3 |
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CVE-2026-40087 (GCVE-0-2026-40087)
Vulnerability from cvelistv5 – Published: 2026-04-09 19:34 – Updated: 2026-04-14 14:48
VLAI
EPSS
VEX
Title
LangChain has incomplete f-string validation in prompt templates
Summary
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 attribute-access validation as PromptTemplate. In particular, DictPromptTemplate and ImagePromptTemplate could accept templates containing attribute access or indexing expressions and subsequently evaluate those expressions during formatting. Second, f-string validation based on parsed top-level field names did not reject nested replacement fields inside format specifiers. In this pattern, the nested replacement field appears in the format specifier rather than in the top-level field name. As a result, earlier validation based on parsed field names did not reject the template even though Python formatting would still attempt to resolve the nested expression at runtime. This vulnerability is fixed in 0.3.84 and 1.2.28.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-14 14:47 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/pull/36612 | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/pull/36613 | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/release… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
< 0.3.83
Affected: >= 1.0.0a1, < 1.2.28 |
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CVE-2026-34070 (GCVE-0-2026-34070)
Vulnerability from cvelistv5 – Published: 2026-03-31 02:01 – Updated: 2026-08-25 12:05
VLAI
EPSS
VEX
Title
LangChain Core has Path Traversal vulnerabilites in legacy `load_prompt` functions
Summary
LangChain is a framework for building agents and LLM-powered applications. Prior to version 1.2.22, multiple functions in langchain_core.prompts.loading read files from paths embedded in deserialized config dicts without validating against directory traversal or absolute path injection. When an application passes user-influenced prompt configurations to load_prompt() or load_prompt_from_config(), an attacker can read arbitrary files on the host filesystem, constrained only by file-extension checks (.txt for templates, .json/.yaml for examples). This issue has been patched in version 1.2.22.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-31 15:17 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/release… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-34070 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2453287 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:24766 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59159 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:37275 | vendor-advisoryx_refsource_REDHAT |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
< 1.2.22
|
|
| Red Hat | Red Hat Ansible Automation Platform 2.5 |
Unaffected:
1780082949 , < *
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|
| Red Hat | Red Hat OpenShift AI 3.3 |
Unaffected:
1782471587 , < *
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|
| Red Hat | Red Hat OpenShift AI 3.3 |
Unaffected:
1782471606 , < *
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cpe:/a:redhat:openshift_ai:3.3::el9 |
|
| Red Hat | OpenShift Lightspeed |
cpe:/a:redhat:openshift_lightspeed
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai
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CVE-2026-26013 (GCVE-0-2026-26013)
Vulnerability from cvelistv5 – Published: 2026-02-10 21:51 – Updated: 2026-02-11 21:26
VLAI
EPSS
VEX
Title
LangChain affected by SSRF via image_url token counting in ChatOpenAI.get_num_tokens_from_messages
Summary
LangChain is a framework for building agents and LLM-powered applications. Prior to 1.2.11, the ChatOpenAI.get_num_tokens_from_messages() method fetches arbitrary image_url values without validation when computing token counts for vision-enabled models. This allows attackers to trigger Server-Side Request Forgery (SSRF) attacks by providing malicious image URLs in user input. This vulnerability is fixed in 1.2.11.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-11 21:26 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
< 1.2.11
|
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CVE-2025-68664 (GCVE-0-2025-68664)
Vulnerability from cvelistv5 – Published: 2025-12-23 22:47 – Updated: 2025-12-24 14:40
VLAI
EPSS
VEX
Title
LangChain serialization injection vulnerability enables secret extraction in dumps/loads APIs
Summary
LangChain is a framework for building agents and LLM-powered applications. Prior to versions 0.3.81 and 1.2.5, a serialization injection vulnerability exists in LangChain's dumps() and dumpd() functions. The functions do not escape dictionaries with 'lc' keys when serializing free-form dictionaries. The 'lc' key is used internally by LangChain to mark serialized objects. When user-controlled data contains this key structure, it is treated as a legitimate LangChain object during deserialization rather than plain user data. This issue has been patched in versions 0.3.81 and 1.2.5.
Severity
9.3 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-24 14:40 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/pull/34455 | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/pull/34458 | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/release… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
>= 1.0.0, < 1.2.5
Affected: < 0.3.81 |
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CVE-2025-65106 (GCVE-0-2025-65106)
Vulnerability from cvelistv5 – Published: 2025-11-21 21:43 – Updated: 2025-11-21 21:53
VLAI
EPSS
VEX
Title
LangChain Vulnerable to Template Injection via Attribute Access in Prompt Templates
Summary
LangChain is a framework for building agents and LLM-powered applications. From versions 0.3.79 and prior and 1.0.0 to 1.0.6, a template injection vulnerability exists in LangChain's prompt template system that allows attackers to access Python object internals through template syntax. This vulnerability affects applications that accept untrusted template strings (not just template variables) in ChatPromptTemplate and related prompt template classes. This issue has been patched in versions 0.3.80 and 1.0.7.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-21 21:53 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langchain/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langchain/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain |
Affected:
>= 1.0.0, < 1.0.7
Affected: < 0.3.80 |
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CVE-2024-8309 (GCVE-0-2024-8309)
Vulnerability from cvelistv5 – Published: 2024-10-29 12:50 – Updated: 2025-10-15 12:50
VLAI
EPSS
VEX
Title
SQL Injection in langchain-ai/langchain
Summary
A vulnerability in the GraphCypherQAChain class of langchain-ai/langchain version 0.2.5 allows for SQL injection through prompt injection. This vulnerability can lead to unauthorized data manipulation, data exfiltration, denial of service (DoS) by deleting all data, breaches in multi-tenant security environments, and data integrity issues. Attackers can create, update, or delete nodes and relationships without proper authorization, extract sensitive data, disrupt services, access data across different tenants, and compromise the integrity of the database.
Severity
4.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-29 13:50 UTC
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain-ai/langchain |
Affected:
unspecified , < 0.3.0
(custom)
|
|
| langchain-ai | langchain |
Affected:
0 , < 0.3.0
(custom)
cpe:2.3:a:langchain-ai:langchain:*:*:*:*:*:*:*:* |
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CVE-2024-3571 (GCVE-0-2024-3571)
Vulnerability from cvelistv5 – Published: 2024-04-16 00:00 – Updated: 2024-08-01 20:12
VLAI
EPSS
VEX
Title
Path Traversal in langchain-ai/langchain
Summary
langchain-ai/langchain is vulnerable to path traversal due to improper limitation of a pathname to a restricted directory ('Path Traversal') in its LocalFileStore functionality. An attacker can leverage this vulnerability to read or write files anywhere on the filesystem, potentially leading to information disclosure or remote code execution. The issue lies in the handling of file paths in the mset and mget methods, where user-supplied input is not adequately sanitized, allowing directory traversal sequences to reach unintended directories.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-17 19:16 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langchain-ai/langchain |
Affected:
unspecified , < 0.0.353
(custom)
|
|
| langchain-ai | langchain |
Affected:
0.0.351
cpe:2.3:a:langchain-ai:langchain:0.0.351:*:*:*:*:*:*:* |
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