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CVE-2026-56678

MEDIUM Exploitation: PoC
6.4
CVSS 3.1
Description
9Router is an AI router & token saver. Prior to 0.5.6, the Kiro API-key validation endpoint POST /api/oauth/kiro/api-key builds an upstream URL using a user-controlled region value, allowing an authenticated attacker to supply a crafted region such as kiro-canary.local:8443# and cause 9Router to send the Kiro validation request to an attacker-controlled host while forwarding the submitted Kiro API key as an Authorization header. This issue is fixed in version 0.5.6.

Metadata

CVE ID
CVE-2026-56678
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-22 16:39 UTC
Published
2026-07-15 20:51 UTC
Last updated
2026-07-16 12:53 UTC
Primary CWE
CWE-20
CWE-20: Improper Input Validation
Vendor / Product
decolua / 9router
Sources
cve.org  ·  NVD

Severity & Metrics

6.4 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
decolua 9router — < 0.5.6
Weakness (CWE)
CWESourceDescription
CWE-20 cna CWE-20: Improper Input Validation
CWE-918 cna CWE-918: Server-Side Request Forgery (SSRF)
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.4 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
References (3)
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