CVE-2026-7645: Sublinear time solver Path Traversal Vulnerability

MODERATE
Advisory Identifier: GHSA-gc2j-wpjv-jhrw
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CVSS 6.5
CWE-22
Published
Advisory Summary

CVE-2026-7645 is a MODERATE (CVSS 6.5) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Sublinear time solver libraries in the npm ecosystem. The issue involves sublinear-time-solver has a path traversal issue. Remediation is available in the latest vendor maintenance releases.

CVE-2026-7645 at a Glance

CVE Identifier CVE-2026-7645
GHSA Identifier GHSA-gc2j-wpjv-jhrw
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Sublinear time solver
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2026-7645

To remediate this vulnerability, upgrade all affected Sublinear time solver dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

sublinear-time-solver fixed: Latest secure release 
npm install sublinear-time-solver@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls sublinear-time-solver

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-7645, inspect your project dependencies using npm:

npm ls sublinear-time-solver

Analyze the terminal output to locate any version of Sublinear time solver in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls sublinear-time-solver command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Sublinear time solver, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A vulnerability was found in ruvnet sublinear-time-solver 1.5.0. Affected by this vulnerability is the function export_state of the file src/consciousness-explorer/mcp/server.js of the component MCP Interface. The manipulation results in path traversal. The attack can be executed remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

CVE-2026-7645 Affected Sublinear time solver Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
sublinear-time-solver
npm/sublinear-time-solver
npm
≤ 1.5.0

References

NVD — CVE-2026-7645 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7645
Sublinear time solver Source Repository REPOSITORY
https://github.com/ruvnet/sublinear-time-solver/issues/19
Sublinear time solver Source Repository REPOSITORY
https://github.com/ruvnet/sublinear-time-solver
vuldb.com/submit/806895 WEB
https://vuldb.com/submit/806895
vuldb.com/vuln/360757 WEB
https://vuldb.com/vuln/360757
vuldb.com/vuln/360757/cti WEB
https://vuldb.com/vuln/360757/cti

Frequently Asked Questions

What is CVE-2026-7645?
CVE-2026-7645 is a security vulnerability in Sublinear time solver involving sublinear-time-solver has a Path Traversal Issue under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Sublinear time solver versions are affected?
Affected versions include releases prior to current release patches across affected packages: sublinear-time-solver.
What version fixes CVE-2026-7645?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is sublinear-time-solver affected?
Yes, sublinear-time-solver is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-7645?
CVE-2026-7645 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
What CWE is associated with CVE-2026-7645?
CVE-2026-7645 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check npm dependencies for CVE-2026-7645?
Run the dependency tree command: 'npm ls sublinear-time-solver'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-gc2j-wpjv-jhrw",
  "modified" : "2026-05-07T21:08:58Z",
  "published" : "2026-05-02T18:30:27Z",
  "aliases" : [ "CVE-2026-7645" ],
  "summary" : "sublinear-time-solver has a Path Traversal Issue",
  "details" : "A vulnerability was found in ruvnet sublinear-time-solver 1.5.0. Affected by this vulnerability is the function export_state of the file src/consciousness-explorer/mcp/server.js of the component MCP Interface. The manipulation results in path traversal. The attack can be executed remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "sublinear-time-solver"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-7645"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ruvnet/sublinear-time-solver/issues/19"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ruvnet/sublinear-time-solver"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/806895"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/360757"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/360757/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-07T21:08:58Z",
    "nvd_published_at" : "2026-05-02T16:16:15Z"
  }
}