Information disclosure in Hkuds Nanobot
CVE-2026-19245
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".
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (6.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Hkuds Nanobot — versions 0.2.0, 0.2.1, 0.3.0
Weakness classification (CWE)
References
- gist.github.com/YLChen-007/b25f3f185478e0b2cd0e727bf5c5ed9b (exploit)
- github.com/HKUDS/nanobot/ (product)
- github.com/HKUDS/nanobot/issues/4518 (issue-tracking)
- github.com/HKUDS/nanobot/pull/4525 (issue-tracking, patch)
- github.com/HKUDS/nanobot/releases/tag/v0.3.0 (patch)
- vuldb.com/cve/CVE-2026-19245 (third-party-advisory)
- vuldb.com/submit/865117 (third-party-advisory)
- vuldb.com/vuln/386999 (technical-description, vdb-entry)
- vuldb.com/vuln/386999/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-19245?
- CVE-2026-19245 is a low-severity vulnerability in Hkuds Nanobot, classified under Information Disclosure. CVSS score: 3.3/10. Published 2026-08-07.
- How severe is CVE-2026-19245?
- Low severity. CVSS v3 base score is 3.3 out of 10.