CVE-2026-11165353AIHub through 0.5.3 Missing Authentication via PUT /api/enterprises/:id
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No exploitation reported and no EPSS estimate yet.
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53AIHub through 0.5.3 contains a missing authentication vulnerability that allows unauthenticated attackers to overwrite any enterprise's profile by sending PUT requests to /api/enterprises/:id. Because UpdateEnterprise only enforces checks when IS_SAAS is true, attackers can enumerate sequential enterprise IDs and overwrite logos, display names and branding for defacement and phishing.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-306
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 16, 2026
Affected products
53AI 53AIHub 53ai:53aihub (from the name) | through 0.5.3 | CNA record |
References
- https://hackmd.io/@hieuPenguinnn/53aihub-unauth-cross-tenant-enterprise-updatethird-party-advisory
- https://github.com/53AI/53AIHub/blob/v0.5.3/api/router/api.go#L54-L66technical-description
- https://github.com/53AI/53AIHub/blob/v0.5.3/api/controller/enterprise.go#L122-L160technical-description
- https://www.vulncheck.com/advisories/53aihub-through-0.5.3-missing-authentication-via-put-api-enterprises-idthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.