CVE-2026-17534
MEDIUMKimi Code FetchURL SSRF protection bypass via DNS-resolving hostnames and redirects
Title source: cnaDescription
Kimi Code (@moonshot-ai/kimi-code) before 0.27.0 implements FetchURL SSRF hardening as a static hostname and IP-literal denylist in assertSafeFetchTarget, without resolving DNS or re-validating hosts after HTTP redirects. An attacker who can influence a FetchURL call (for example via prompt injection) can supply a crafted public hostname that resolves to loopback or another internal address, or a public URL that redirects to such a target, and thereby reach internal network services that the denylist was intended to block. FetchURL is included in the default auto-approve tool set, so the call does not require interactive user confirmation in manual mode.
References (4)
Core 4
Core References
Patch patch
Fix: close FetchURL SSRF bypasses and DNS-rebinding window
https://github.com/MoonshotAI/kimi-code/commit/31449728b72df94e22bcb2de350a1e7624895e30
Patch patch
PR #1791: close FetchURL SSRF bypasses and DNS-rebinding window
https://github.com/MoonshotAI/kimi-code/pull/1791
Vendor Advisory vendor-advisory
Kimi Code 0.27.0 release
https://github.com/MoonshotAI/kimi-code/releases/tag/%40moonshot-ai%2Fkimi-code%400.27.0
Scores
CVSS v3
5.5
EPSS
0.0012
EPSS Percentile
2.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-918
Status
published
Products (1)
MoonshotAI/Kimi Code
< 0.27.0
Published
Jul 27, 2026
Tracked Since
Jul 27, 2026