CVE-2026-30855 json
WeKnora: Broken Access Control in Tenant Management
published 2026-03-06 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-10178 , GHSA-ccj6-79j6-cq5q , GO-2026-4642
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.2, an authorization bypass in tenant management endpoints of WeKnora application allows any authenticated user to read, modify, or delete any tenant by ID. Since account registration is open to the public, this vulnerability allows any unauthenticated attacker to register an account and subsequently exploit the system. This enables cross-tenant account takeover and destruction, making the impact critical. This issue has been patched in version 0.3.2.
Patch / fix
- go github.com/Tencent/WeKnora 0.3.1, 0.3.2
- tencent weknora 0.3.2
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260317T205859-150000.1.152.1
suse advisories SUSE-SU-2026:1042-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 8 mo ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/Tencent/WeKnora/security/advisories/GHSA-ccj6-79j6-cq5q referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/Tencent/WeKnora | <0.3.2 <0.3.1 |
0.3.2 0.3.1 |
Affected products
- Tencent WeKnora
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/Tencent/WeKnora/security/advisories/GHSA-ccj6-79j6-cq5q
web, exploit, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-30855
advisory
-
github.com
/Tencent/WeKnora
package
Sources
- CVE List CVE-2026-30855
- GitHub Advisory GHSA-ccj6-79j6-cq5q
- NVD CVE-2026-30855
- OSV GO-2026-4642
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.