CVE-2026-19245
HKUDS nanobot Login-shell Environment shell.py ExecTool._prepare_command information disclosure
Description
A flaw has been found in HKUDS nanobot up to 0.2.1. The impacted element is the function ExecTool._prepare_command of the file nanobot/agent/tools/shell.py of the component Login-shell Environment Handler. Executing a manipulation can lead to information disclosure. The attack requires local access. The exploit has been published and may be used. Upgrading to version 0.3.0 is sufficient to resolve this issue. This patch is called 4525. The affected component should be upgraded. Multiple issues were reported to the project. They reacted with a high level of professionalism and kindness: "The report concerns shell startup files reintroducing environment variables when command execution defaults to a login shell. The default was changed so exec does not use a login shell unless explicitly requested".
INFO
Published Date :
Aug. 7, 2026, 9:17 p.m.
Last Modified :
Aug. 7, 2026, 9:17 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-19245
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 2.0 | LOW | [email protected] | ||||
| CVSS 3.1 | LOW | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Upgrade HKUDS nanobot to version 0.3.0.
- Ensure shell execution does not use a login shell.
- Review shell startup files configuration.
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-2026-19245.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-19245 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-2026-19245
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-2026-19245 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-19245 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.
-
New CVE Received by [email protected]
Aug. 07, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:nanobot:nanobot:*:*:*:*:*:*:*:*'], 'vendor': 'HKUDS', 'modules': ['Login-shell Environment Handler'], 'product': 'nanobot', 'versions': [{'status': 'affected', 'version': '0.2.0'}, {'status': 'affected', 'version': '0.2.1'}, {'status': 'unaffected', 'version': '0.3.0'}]}] Added Description A flaw has been found in HKUDS nanobot up to 0.2.1. The impacted element is the function ExecTool._prepare_command of the file nanobot/agent/tools/shell.py of the component Login-shell Environment Handler. Executing a manipulation can lead to information disclosure. The attack requires local access. The exploit has been published and may be used. Upgrading to version 0.3.0 is sufficient to resolve this issue. This patch is called 4525. The affected component should be upgraded. Multiple issues were reported to the project. They reacted with a high level of professionalism and kindness: "The report concerns shell startup files reintroducing environment variables when command execution defaults to a login shell. The default was changed so exec does not use a login shell unless explicitly requested". Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Added CVSS V2 (AV:L/AC:L/Au:S/C:P/I:N/A:N) Added CWE CWE-200 Added CWE CWE-284 Added Reference https://gist.github.com/YLChen-007/b25f3f185478e0b2cd0e727bf5c5ed9b Added Reference https://github.com/HKUDS/nanobot/ Added Reference https://github.com/HKUDS/nanobot/issues/4518 Added Reference https://github.com/HKUDS/nanobot/pull/4525 Added Reference https://github.com/HKUDS/nanobot/releases/tag/v0.3.0 Added Reference https://vuldb.com/cve/CVE-2026-19245 Added Reference https://vuldb.com/submit/865117 Added Reference https://vuldb.com/vuln/386999 Added Reference https://vuldb.com/vuln/386999/cti