CVE-2026-90808

Summary

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.

Affected Software

Weaknesses

• CWE-184: Incomplete Blacklist
• CWE-183: Permissive List of Allowed Inputs

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://github.com/HKUDS/nanobot/issues/5305

References

• https://vuldb.com/vuln/403310
• https://vuldb.com/vuln/403310/cti
• https://vuldb.com/cve/CVE-2026-90808
• https://vuldb.com/submit/922849
• https://github.com/HKUDS/nanobot/issues/5305
• https://github.com/HKUDS/nanobot/pull/5345
• https://github.com/HKUDS/nanobot/commit/af582246f141311d574551b7571a517bcc3df750
• https://github.com/HKUDS/nanobot/

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