CVE-2026-92576 json
HKUDS nanobot before 0.3.0 Server-Side Request Forgery via WebFetchTool
published 2mo ago modified last mo. also EUVD-2026-81276 , GHSA-vc5v-6vwm-wf9m
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository HKUDS/nanobot. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- 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 39%
- 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
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Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-11).
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, advisory
-
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
- Maintainer advisory GHSA-vc5v-6vwm-wf9m
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of HKUDS/nanobot published their own advisory on GitHub. Reviewed sources take precedence over it.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.