CVE-2026-7875
NanoClaw Host/Container Filesystem Boundary Vulnerability via Outbound Attachment Handling
NanoClaw version 1.2.0 and prior contains a host/container filesystem boundary vulnerability in outbound attachment handling and outbox cleanup that allows a compromised or prompt-injected container to read files outside the intended outbox directory by supplying crafted messages_out.id and content.files values or creating symlinked outbox files. Attackers can exploit this vulnerability to trigger host-side reads of arbitrary files and in some cases achieve recursive deletion of paths outside the intended cleanup target.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| NanoClaw Qwibit |
7814e45570edf0024a1a5c2ba9fbc9cb3a49f7f7 (unaffected, git) ≥ 0; ≤ 1.2.0 (affected, semver) Other versions: unknown |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 8.8 high |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | CNA: VulnCheck |
| 4.0 / 9.3 critical |
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | CNA: VulnCheck |
Exploit evidence
- https://github.com/qwibitai/nanoclaw/pull/2001
exploit · ADP: CISA-ADP
References
- https://github.com/qwibitai/nanoclaw/pull/2001CNA: VulnCheck · issue-tracking, patch
- https://github.com/qwibitai/nanoclaw/commit/7814e45570edf0024a1a5c2ba9fbc9cb3a49f7f7CNA: VulnCheck · patch
- https://github.com/qwibitai/nanoclaw/releases/tag/v1.2.0CNA: VulnCheck · release-notes
- https://github.com/qwibitai/nanoclaw/pull/2001ADP: CISA-ADP · exploit
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