What’s Vulnerable › Vulnerabilities

CVE-2026-116634: OmniRoute 3.8.50 before 3.8.52 Missing Authentication via /api/sync/tokens

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-26 · updated 2026-10-26
• Weakness: CWE-306

Description

OmniRoute 3.8.50 before 3.8.52 contains a missing authentication vulnerability that allows unauthenticated attackers to issue sync tokens via POST /api/sync/tokens when requireLogin is disabled. Attackers can use the issued token against GET /api/sync/bundle to retrieve decrypted provider credentials and plaintext API keys, with tokens persisting after login is re-enabled.

Affected products

• cheaper-inference OmniRoute: from 3.8.50 before 3.8.52 — fixed in 3.8.52

How to fix

Upgrade to a fixed version: cheaper-inference OmniRoute 3.8.52. Check the vendor advisory for mitigations.

References

• https://github.com/cheaper-inference/OmniRoute
• https://github.com/cheaper-inference/OmniRoute/blob/c1e30b7676975feb298b49eff6ff58923c04b89e/src/app/api/sync/tokens/route.ts#L28-L30
• https://github.com/cheaper-inference/OmniRoute/blob/c1e30b7676975feb298b49eff6ff58923c04b89e/src/server/authz/routeGuard.ts#L154-L167
• https://github.com/cheaper-inference/OmniRoute/commit/44a29611bf088e351d8d40eacaabdc1794ed0c61
• https://github.com/cheaper-inference/OmniRoute/pull/17053
• https://github.com/cheaper-inference/OmniRoute/releases/tag/v3.8.52
• https://www.vulncheck.com/advisories/omniroute-3.8.50-before-3.8.52-missing-authentication-via-api-sync-tokens

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