Medium severity5.0NVD Advisory· Published Jun 1, 2026· Updated Jul 22, 2026
CVE-2026-49138
CVE-2026-49138
Description
Nanobot prior to version 0.2.1 contains a server-side request forgery vulnerability in the web_fetch tool that allows remote attackers to reach internal or private network hosts by supplying a URL that redirects to a loopback or private address via a 3xx Location header. Attackers can exploit the automatic HTTP redirect following behavior in the httpx library to bypass initial URL validation and cause the runtime to send outbound requests to internal hosts before final resolved URL validation is applied.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
nanobot-aiPyPI | < 0.2.1 | 0.2.1 |
Affected products
1Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-434r-7c99-hwf3ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-49138ghsaADVISORY
- github.com/HKUDS/nanobot/commit/545294c62c0947da40eb5b65288aaf02b5fdf632nvdWEB
- github.com/HKUDS/nanobot/pull/3928nvdWEB
- github.com/HKUDS/nanobot/releases/tag/v0.2.1nvdWEB
- www.vulncheck.com/advisories/nanobot-ssrf-via-web-fetch-tool-redirect-followingnvdWEB
News mentions
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