November 14, 2026

CVE Watchtower

CVE-2026-121865nanobot-ai >= 0.3.5, Incorrect Authorization

NVD

Vulnerability Summary

Impact In the confirmed affected releases 0.3.5 and 0.4.0, a standard WebSocket client with a valid client token could select an existing directory outside the operator-configured workspace as the root of a new conversation. The agent could then expose files in that directory that are readable by the nanobot service account. The issue requires gateway access and a valid client token; it does not bypass operating-system file permissions. Earlier releases are still being assessed and are not established to be unaffected. Patches Upgrade `nanobot-ai` to 0.4.1 or later using the existing installation method, and restart the gateway. The fix restricts ordinary clients to their configured workspace authority. Credits Thanks to Tenable Research for reporting and validating this issue. CVE-2026-121865.
Severity Level
HIGH(7.6)
Published Date
Nov 8, 2026
Last Modified
Nov 8, 2026
Exploitation Status
No confirmed exploitation yet
CVE Record Status
Reserved
This CVE ID is referenced in a public advisory, but the CVE Program has not published its official CVE Record yet. Full CVSS/CPE data from NVD will appear here once it does.
Root Weakness (CWE)
CWE-863: Incorrect Authorization β†—
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
CVSS v3.1 Base Metrics — Score 7.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityLow
AvailabilityLow

Affected & Patched Versions

Affected Versions
  • nanobot-ai >= 0.3.5, <= 0.4.0
Patched Versions
  • nanobot-ai 0.4.1

What to do

Plan remediation soon. No exploitation is confirmed yet, but the severity is high.

  1. Check whether you run nanobot-ai >= 0.3.5, and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • Nov 8, 2026Published
  • Nov 8, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 14, 2026 02:01 UTC