CVE-2026-92576

9.2 criticalEPSS 0.4%

HKUDS nanobot before 0.3.0 contains a server-side request forgery vulnerability in the WebFetchTool component where the _validate_url() function fails to block internal IP ranges and private addresses. Attackers can send messages instructing the bot to fetch cloud metadata endpoints, localhost services, and RFC 1918 addresses to extract IAM credentials and internal service data.

Severity

CVSS 4.0

9.2 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

CVSS 3.1

8.6 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
CWE: CWE-918
Published: 2026-09-16
Modified: 2026-09-17
Record from: the NVD, synced 2026-10-19

References

https://github.com/HKUDS/nanobot/security/advisories/GHSA-vc5v-6vwm-wf9m
https://www.vulncheck.com/advisories/hkuds-nanobot-before-0.3.0-server-side-request-forgery-via-webfetchtool
https://github.com/HKUDS/nanobot/security/advisories/GHSA-vc5v-6vwm-wf9m

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