01 Record
CVE-2026-19243
HKUDS nanobot Shell Allowlist shell.py ExecTool._spawn os command injection
MediumPUBLISHEDCNA: VulDB
CNA base score5.3 CVSS v4.0CVSS: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:P
02 Description
HKUDS nanobot Shell Allowlist shell.py ExecTool._spawn os command injection
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 2.26% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 82.7% of scored records. A rank, not a probability.
- NVD base score
- 2.1 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- 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: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
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-23.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-07 19:30Z2 MO AGO
- Last updated
- 2026-08-11 01:10Z2 MO AGO
- Reserved
- 2026-08-07
- Assigning CNA
- VulDB
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- 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:P
- Weaknesses
- Data version
- 5.2
- Document digest
- 3c95d9ad7c345d44230e22a71fbe00d9cbcde0930160624dfba1b39ff0e2c2a3
05 Affected products
VendorProductVersionsPlatforms
06 References
- vuldb.comVDB-386997 | HKUDS nanobot Shell Allowlist shell.py ExecTool._spawn os command injectionhttps://vuldb.com/vuln/386997
- vuldb.comVDB-386997 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/386997/cti
- vuldb.comCVE-2026-19243 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-19243
- vuldb.comSubmit #865112 | HKUDS nanobot 0.2.1 OS Command Injection via Allowlist Bypass (CWE-78)https://vuldb.com/submit/865112
- vuldb.comSubmit #865114 | HKUDS nanobot 0.2.1 Command Injection via Comment-Tail Allowlist Bypass (CWE-88) (Duplicate)https://vuldb.com/submit/865114
- vuldb.comSubmit #865115 | HKUDS nanobot 0.2.1 Allowlist Bypass via Wrapper Prefix (CWE-184) (Duplicate)https://vuldb.com/submit/865115
- vuldb.comSubmit #865119 | HKUDS nanobot 0.2.1 Allowlist Bypass Leading to Command Execution (CWE-184) (Duplicate)https://vuldb.com/submit/865119
- vuldb.comSubmit #865121 | HKUDS nanobot 0.2.1 Command Injection via Shell-Chain Allowlist Bypass (CWE-88) (Duplicate)https://vuldb.com/submit/865121
- github.comhttps://github.com/HKUDS/nanobot/issues/4521
- gist.github.comhttps://gist.github.com/YLChen-007/8fcbf8e49e7be568e1a92e9e0414fdba
- github.comhttps://github.com/HKUDS/nanobot/pull/4562
- github.comhttps://github.com/HKUDS/nanobot/releases/tag/v0.3.0
- github.comhttps://github.com/HKUDS/nanobot/