1.3 LOW
- CVSS version (CVSS): 4.0
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): High (H)
- Attack Requirement (AT): None (N)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Vulnerable System Impact Confidentiality (VC): Low (L)
- Vulnerable System Impact Integrity (VI): None (N)
- Vulnerable System Impact Availability (VA): None (N)
- Subsequent System Impact Confidentiality (SC): None (N)
- Subsequent System Impact Integrity (SI): None (N)
- Subsequent System Impact Availability (SA): None (N)
- Exploit Maturity (E): POC (P)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): High (H)
- Modified Attack Requirement (MAT): None (N)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Vulnerable System Impact Confidentiality (MVC): Low (L)
- Modified Vulnerable System Impact Integrity (MVI): None (N)
- Modified Vulnerable System Impact Availability (MVA): None (N)
- Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
- Modified Subsequent System Impact Integrity (MSI): Negligible (N)
- Modified Subsequent System Impact Availability (MSA): Negligible (N)
- Safety (S): Not Defined (X)
- Automatable (AU): Not Defined (X)
- Recovery (R): Not Defined (X)
- Value Density (V): Not Defined (X)
- Vulnerability Response Effort (RE): Not Defined (X)
- Provider Urgency (U): Not Defined (X)
- Confidentiality Req. (CR): Not Defined (X)
- Integrity Req. (IR): Not Defined (X)
- Availability Req. (AR): Not Defined (X)
Activity log
- Created suggestion
langchain-ai langgraph Task Result Cache _cache.py _freeze weak hash
A vulnerability was determined in langchain-ai langgraph up to 1.2.4. The affected element is the function _freeze of the file libs/langgraph/langgraph/_internal/_cache.py of the component Task Result Cache. This manipulation of the argument default_cache_key causes use of weak hash. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.
References
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VDB-376328 | langchain-ai langgraph Task Result Cache _cache.py _freeze weak hash vdb-entrytechnical-description
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CVE-2026-14742 | CVE Analysis and Report third-party-advisory
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Submit #849217 | langchain-ai langgraph 1.2.4 Use of Weak Hash third-party-advisory
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Affected products
- ==1.2.3
- ==1.2.4
- ==1.2.2
- ==1.2.1
- ==1.2.0
Matching in nixpkgs
pkgs.langgraph-cli
Official CLI for LangGraph API
pkgs.python313Packages.langgraph
Build resilient language agents as graphs
pkgs.python314Packages.langgraph
Build resilient language agents as graphs
pkgs.python313Packages.langgraph-cli
Official CLI for LangGraph API
pkgs.python313Packages.langgraph-sdk
SDK for interacting with the LangGraph Cloud REST API
pkgs.python314Packages.langgraph-cli
Official CLI for LangGraph API
pkgs.python314Packages.langgraph-sdk
SDK for interacting with the LangGraph Cloud REST API
pkgs.python313Packages.langgraph-prebuilt
Prebuilt agents add-on for Langgraph. Should always be bundled with langgraph
pkgs.python314Packages.langgraph-prebuilt
Prebuilt agents add-on for Langgraph. Should always be bundled with langgraph
pkgs.python313Packages.langgraph-checkpoint
Library with base interfaces for LangGraph checkpoint savers
pkgs.python314Packages.langgraph-checkpoint
Library with base interfaces for LangGraph checkpoint savers
pkgs.python313Packages.langgraph-runtime-inmem
Inmem implementation for the LangGraph API server
pkgs.python313Packages.langgraph-store-mongodb
Integrations between MongoDB, Atlas, LangChain, and LangGraph
pkgs.python314Packages.langgraph-runtime-inmem
Inmem implementation for the LangGraph API server
pkgs.python314Packages.langgraph-store-mongodb
Integrations between MongoDB, Atlas, LangChain, and LangGraph
pkgs.python313Packages.langgraph-checkpoint-sqlite
Library with a SQLite implementation of LangGraph checkpoint saver
pkgs.python314Packages.langgraph-checkpoint-sqlite
Library with a SQLite implementation of LangGraph checkpoint saver
pkgs.python313Packages.langgraph-checkpoint-mongodb
Integrations between MongoDB, Atlas, LangChain, and LangGraph
pkgs.python314Packages.langgraph-checkpoint-mongodb
Integrations between MongoDB, Atlas, LangChain, and LangGraph
pkgs.python313Packages.langgraph-checkpoint-postgres
Library with a Postgres implementation of LangGraph checkpoint saver
Package maintainers
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@sarahec Sarah Clark <seclark@nextquestion.net>