CVE-2026-55609
sublinear-time-solver: Arbitrary file write in consciousness-explorer / sublinear-time-solver MCP export_state
Description
sublinear-time-solver is a Rust and WebAssembly library for solving asymmetric diagonally dominant systems in sublinear time. Prior to consciousness-explorer 1.1.2 and sublinear-time-solver 1.6.0, the export_state and import_state tools in src/consciousness-explorer/mcp/server.js pass the attacker-controlled filepath parameter to filesystem operations in src/consciousness-explorer/index.js without restricting the destination or rejecting traversal. The saveVectorToFile and loadVectorFromFile tools in src/mcp/server.ts contain the same sink class through the file_path parameter. An attacker able to invoke the MCP tools can read, write, or overwrite any file accessible to the server process, causing confidentiality and integrity loss and possible service disruption. This issue is fixed in consciousness-explorer 1.1.2 and sublinear-time-solver 1.6.0.
INFO
Published Date :
Aug. 25, 2026, 7:16 p.m.
Last Modified :
Sept. 9, 2026, 9:07 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-55609
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Sanitize all file path inputs to prevent traversal.
- Validate file destinations before performing operations.
- Update consciousness-explorer to 1.1.2 or later.
- Update sublinear-time-solver to 1.6.0 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-55609.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-55609 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-55609
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-55609 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-55609 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Aug. 26, 2026
Action Type Old Value New Value Added Reference https://github.com/BruceJqs/public_exp/issues/32 Added Reference https://github.com/ruvnet/sublinear-time-solver/commit/a701296e363192be863e79d788fa268095e3d229 Added Reference https://github.com/ruvnet/sublinear-time-solver/commit/ea9a212b69e4449ec443fe088a7aec7546f70b4a Added Reference https://github.com/ruvnet/sublinear-time-solver/issues/19 Added Reference https://github.com/ruvnet/sublinear-time-solver/pull/20 Added Reference https://github.com/ruvnet/sublinear-time-solver/releases/tag/v1.6.0 Added Reference https://github.com/ruvnet/sublinear-time-solver/security/advisories/GHSA-xc9g-j69q-37xw Removed Reference https://github.com/BruceJqs/public_exp/issues/32 Removed Reference https://github.com/ruvnet/sublinear-time-solver/commit/a701296e363192be863e79d788fa268095e3d229 Removed Reference https://github.com/ruvnet/sublinear-time-solver/commit/ea9a212b69e4449ec443fe088a7aec7546f70b4a Removed Reference https://github.com/ruvnet/sublinear-time-solver/issues/19 Removed Reference https://github.com/ruvnet/sublinear-time-solver/pull/20 Removed Reference https://github.com/ruvnet/sublinear-time-solver/releases/tag/v1.6.0 Removed Reference https://github.com/ruvnet/sublinear-time-solver/security/advisories/GHSA-xc9g-j69q-37xw -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 26, 2026
Action Type Old Value New Value Added Reference https://github.com/BruceJqs/public_exp/issues/32 Added Reference https://github.com/ruvnet/sublinear-time-solver/issues/19 Added SSVC {'id': 'CVE-2026-55609', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-26T15:41:42.089174Z'} -
New CVE Received by [email protected]
Aug. 25, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'ruvnet', 'product': 'sublinear-time-solver', 'versions': [{'status': 'affected', 'version': '< 1.6.0'}]}] Added Description sublinear-time-solver is a Rust and WebAssembly library for solving asymmetric diagonally dominant systems in sublinear time. Prior to consciousness-explorer 1.1.2 and sublinear-time-solver 1.6.0, the export_state and import_state tools in src/consciousness-explorer/mcp/server.js pass the attacker-controlled filepath parameter to filesystem operations in src/consciousness-explorer/index.js without restricting the destination or rejecting traversal. The saveVectorToFile and loadVectorFromFile tools in src/mcp/server.ts contain the same sink class through the file_path parameter. An attacker able to invoke the MCP tools can read, write, or overwrite any file accessible to the server process, causing confidentiality and integrity loss and possible service disruption. This issue is fixed in consciousness-explorer 1.1.2 and sublinear-time-solver 1.6.0. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Added CWE CWE-73 Added Reference https://github.com/BruceJqs/public_exp/issues/32 Added Reference https://github.com/ruvnet/sublinear-time-solver/commit/a701296e363192be863e79d788fa268095e3d229 Added Reference https://github.com/ruvnet/sublinear-time-solver/commit/ea9a212b69e4449ec443fe088a7aec7546f70b4a Added Reference https://github.com/ruvnet/sublinear-time-solver/issues/19 Added Reference https://github.com/ruvnet/sublinear-time-solver/pull/20 Added Reference https://github.com/ruvnet/sublinear-time-solver/releases/tag/v1.6.0 Added Reference https://github.com/ruvnet/sublinear-time-solver/security/advisories/GHSA-xc9g-j69q-37xw