CVE-2026-92576 json
HKUDS nanobot before 0.3.0 Server-Side Request Forgery via WebFetchTool
published 2026-09-16 53 d ago modified 2026-09-17 52 d ago also EUVD-2026-81276
- cvss
- 8.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 38%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- HKUDS nanobot 0.3.0
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 52 d ago
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/HKUDS/nanobot/security/advisories/GHSA-vc5v-6vwm-wf9m referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.2 | 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 |
| CNA | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
| CNA | 4.0 | 9.2 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- HKUDS nanobot
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/HKUDS/nanobot/security/advisories/GHSA-vc5v-6vwm-wf9m
vendor-advisory, exploit
-
vulncheck.com
/advisories/hkuds-nanobot-before-0.3.0-server-side-request-forgery-via-webfetchtool
third-party-advisory
Sources
- CVE List CVE-2026-92576
- NVD CVE-2026-92576
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