CVE-2026-18993
NousResearch hermes-agent Memory Toolset model_tools.py access control
Description
A vulnerability was detected in NousResearch hermes-agent up to 0.16.0. Affected by this issue is some unknown functionality of the file hermes-agent/model_tools.py of the component Memory Toolset. The manipulation results in improper access controls. The attack can be executed remotely. The exploit is now public and may be used.
INFO
Published Date :
Aug. 6, 2026, 5:16 a.m.
Last Modified :
Aug. 6, 2026, 5:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Update NousResearch hermes-agent to version 0.16.1 or later.
- Review access control configurations in model_tools.py.
- Apply security patches provided by the vendor.
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-2026-18993.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-18993 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-2026-18993
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-2026-18993 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-18993 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.
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New CVE Received by [email protected]
Aug. 06, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*'], 'vendor': 'NousResearch', 'modules': ['Memory Toolset'], 'product': 'hermes-agent', 'versions': [{'status': 'affected', 'version': '0.1'}, {'status': 'affected', 'version': '0.2'}, {'status': 'affected', 'version': '0.3'}, {'status': 'affected', 'version': '0.4'}, {'status': 'affected', 'version': '0.5'}, {'status': 'affected', 'version': '0.6'}, {'status': 'affected', 'version': '0.7'}, {'status': 'affected', 'version': '0.8'}, {'status': 'affected', 'version': '0.9'}, {'status': 'affected', 'version': '0.10'}, {'status': 'affected', 'version': '0.11'}, {'status': 'affected', 'version': '0.12'}, {'status': 'affected', 'version': '0.13'}, {'status': 'affected', 'version': '0.14'}, {'status': 'affected', 'version': '0.15'}, {'status': 'affected', 'version': '0.16.0'}]}] Added Description A vulnerability was detected in NousResearch hermes-agent up to 0.16.0. Affected by this issue is some unknown functionality of the file hermes-agent/model_tools.py of the component Memory Toolset. The manipulation results in improper access controls. The attack can be executed remotely. The exploit is now public and may be used. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CWE CWE-284 Added CWE CWE-266 Added Reference https://github.com/NousResearch/hermes-agent/ Added Reference https://github.com/NousResearch/hermes-agent/issues/46171 Added Reference https://github.com/NousResearch/hermes-agent/issues/48181 Added Reference https://github.com/NousResearch/hermes-agent/pull/46185 Added Reference https://vuldb.com/cve/CVE-2026-18993 Added Reference https://vuldb.com/submit/862610 Added Reference https://vuldb.com/vuln/386377 Added Reference https://vuldb.com/vuln/386377/cti