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Vulnerability record/PUBLISHED/Published May 6, 2026 16:10:46 UTC

CVE-2026-7875

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.

Base score9.3/ 10
SeverityCriticalCVSS 4.0

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes
Base severityCritical
Attack vectorLocalAV
Attack complexityLowAC
Attack requirementsNoneAT
Privileges requiredLowPR
User interactionNoneUI
Vulnerable system confidentialityHighVC
Vulnerable system integrityHighVI
Vulnerable system availabilityHighVA
Subsequent system confidentialityHighSC
Subsequent system integrityHighSI
Subsequent system availabilityHighSA
CVSS vector stringCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering AuthorityVulnCheck
Last updatedNov 8, 2026 14:09:05 UTC
PublishedMay 6, 2026 16:10:46 UTC
ReservedMay 5, 2026 14:27:47 UTC

Credits

  • Chia Min Jun Lennon