CVE-2026-48775 Vulnerability Analysis & Exploit Details

CVE-2026-48775
Vulnerability Scoring

6.8
/10
High Risk

If left unpatched, CVE-2026-48775 could lead to major system disruptions or data loss.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Adjacent_network
    Attack Vector Under Analysis
  • Privileges Required: High
    High-level privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-48775 Details

Status: Analyzed

Last updated: 🕡 24 Jun 2026, 18:53 UTC
Originally published on: 🕖 16 Jun 2026, 19:16 UTC

Time between publication and last update: 7 days

CVSS Release: version 3

CVSS3 Source

security-advisories@github.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVE-2026-48775 Vulnerability Summary

CVE-2026-48775: LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In versions 4.1.0 and prior, the JsonPlusSerializer can reconstruct Python objects from JSON checkpoint payloads. Under conditions where someone could modify checkpoint bytes at rest in the backing store, the deserialization path could reconstruct objects beyond what the application expects, which could in turn result in code execution at checkpoint load time. This is a defense-in-depth issue. The affected behavior is reachable only when checkpoint bytes at rest in the backing store can be modified by an unauthorized party. In most deployments that prerequisite already implies a serious incident; the additional concern is turning "checkpoint-store write access" into code execution in the application runtime. This issue has been fixed in version 4.1.1.

Assessing the Risk of CVE-2026-48775

Access Complexity Graph

The exploitability of CVE-2026-48775 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-48775

The exploitability of CVE-2026-48775 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-48775, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-48775, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2026-48775 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2026-48775 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2026-48775 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2026-48775 References

External References

CWE Common Weakness Enumeration

CWE-913

Vulnerable Configurations

  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.0:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.0:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.1:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.1:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.2:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.2:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.3:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.3:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.4:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.4:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.7:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.7:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.8:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.8:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.9:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.9:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.10:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.10:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.11:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.11:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.12:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.12:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.13:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.13:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:1.0.14:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:1.0.14:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.0:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.0:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.1:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.1:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.2:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.2:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.3:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.3:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.4:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.4:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.5:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.5:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.6:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.6:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.7:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.7:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.8:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.8:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.9:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.9:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.10:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.10:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.12:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.12:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.13:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.13:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.14:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.14:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.15:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.15:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.16:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.16:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.17:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.17:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.18:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.18:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.19:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.19:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.20:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.20:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.21:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.21:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.22:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.22:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.23:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.23:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.24:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.24:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.25:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.25:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.0.26:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.0.26:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.1.0:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.1.0:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.1.1:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.1.1:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:2.1.2:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:2.1.2:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:3.0.0:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:3.0.0:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:3.0.1:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:3.0.1:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.0.0:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.0.0:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.0.1:-:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.0.1:-:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.0.1:rc1:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.0.1:rc1:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.0.1:rc2:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.0.1:rc2:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.0.1:rc3:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.0.1:rc3:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.0.2:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.0.2:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.0.3:*:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.0.3:*:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.1.0:-:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.1.0:-:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.1.0:a1:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.1.0:a1:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.1.0:a2:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.1.0:a2:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.1.0:a3:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.1.0:a3:*:*:*:python:*:*
  • cpe:2.3:a:langchain:langgraph-checkpoint:4.1.0:a4:*:*:*:python:*:*
    cpe:2.3:a:langchain:langgraph-checkpoint:4.1.0:a4:*:*:*:python:*:*

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