CVE-2026-7875

CVE-2026-7875 is a high-severity vulnerability in Nanoco Nanoclaw with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-7875?
CVE-2026-7875 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-7875 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7875?
CVE-2026-7875 affects Nanoco Nanoclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7875?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-7875 have an EU (EUVD) identifier?
Yes. CVE-2026-7875 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27873.
When was CVE-2026-7875 published?
CVE-2026-7875 was published on 2026-05-06 and last updated on 2026-06-17.

References

Affected products (1)

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