CVE-2026-116672: Weaviate cli · Authlib RFC 7592 examples omit registration-access-token client binding
Affects weaviate-cliSource GCVE Database
Not known to be exploited · CVSS 8.8 High : upgrade to 3.4.2_1 soon.
Data as of 31 Oct 2026, 16:23 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 8.8 |
|---|
- Patch
- Available – fixed in 3.4.2_1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 27 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade weaviate-cli to 3.4.2_1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Homebrewweaviate-clipkg:brew/weaviate-cliOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available in Weaviate CLI version 3.4.2_1 that corrects this authorization bypass by properly binding the registration_access_token to the client being accessed. Users should upgrade to version 3.4.2_1 or later. Until patched, developers should ensure that implementations verify that the token presented belongs to the client identified in the request, not just that the token is valid. No other mitigations are specified.
Description
CVE-2026-116672 affects the Weaviate CLI's use of Authlib's implementation of RFC 7592 OAuth 2.0 Dynamic Client Registration Management Protocol. The provided example code for client authentication and permission checking omits a critical step: binding the registration access token to the specific client being accessed. This omission allows an attacker with any valid registration access token and knowledge of a client ID to bypass authorization controls and access or modify that client's registration. The vulnerability is present in versions >=3.0.2 and <3.4.2_1 and has been fixed in version 3.4.2_1.
References
- github.com/authlib/authlib/security/advisories/GHSA-c73q-w75p-j82v (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-116672 (opens in a new tab)
- github.com/authlib/authlib/commit/1bd2a313492ce0a4d0571c150730907aa3fc91ff (opens in a new tab)
- github.com/authlib/authlib (opens in a new tab)
- github.com/authlib/authlib/releases/tag/v1.9.1 (opens in a new tab)