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CVE-2026-90808mediumCWE-183CWE-184

HKUDS nanobot ExecTool shell.py ExecTool._spawn incomplete blacklist

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.3epss 0.3%
exploitation probability
0.3%top 79% of all CVEs
observed exploitation
nono source reports it
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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
Affected products
HKUDS · nanobot
References
https://github.com/HKUDS/nanobot/https://github.com/HKUDS/nanobot/commit/af582246f141311d574551b7571a517bcc3df750https://github.com/HKUDS/nanobot/issues/5305https://github.com/HKUDS/nanobot/pull/5345https://vuldb.com/cve/CVE-2026-90808https://vuldb.com/submit/922849https://vuldb.com/vuln/403310https://vuldb.com/vuln/403310/cti