CVE-2026-90808HKUDS nanobot ExecTool shell.py ExecTool._spawn incomplete blacklist
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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A vulnerability was determined in HKUDS nanobot up to 0.2.1. Impacted is the function ExecTool._guard_command/ExecTool._spawn of the file nanobot/agent/tools/shell.py of the component ExecTool. This manipulation causes incomplete blacklist. It is possible to initiate the attack remotely. Patch name: af582246f141311d574551b7571a517bcc3df750. Applying a patch is the recommended action to fix this issue.
- CVSS
- 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
- Weakness (CWE)
- CWE-184, CWE-183
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
HKUDS nanobot nanobot:nanobot | 0.2.0; 0.2.1 | CNA record |
References
- https://vuldb.com/vuln/403310vdb-entry, technical-description
- https://vuldb.com/vuln/403310/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-90808third-party-advisory
- https://vuldb.com/submit/922849third-party-advisory
- https://github.com/HKUDS/nanobot/issues/5305issue-tracking
- https://github.com/HKUDS/nanobot/pull/5345issue-tracking, patch
- https://github.com/HKUDS/nanobot/commit/af582246f141311d574551b7571a517bcc3df750patch
- https://github.com/HKUDS/nanobot/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.