SQL Injection in Tencent Weknora
CVE-2026-108821
A security vulnerability has been detected in Tencent WeKnora up to 0.8.1. Impacted is the function validateSubquery of the file internal/utils/inject.go of the component SQL Validator. The manipulation leads to sql injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 0.8.2 is recommended to address this issue. The identifier of the patch is d7ccd5ba517cc3968e6d5000a2ab0f4b51ef1dda. It is recommended to upgrade the affected component.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Tencent Weknora — versions 0.8.0, 0.8.1
Weakness classification (CWE)
References
- gist.github.com/k4z01/8ab2f57b015825f8738ed536dd870877 (exploit)
- github.com/Tencent/WeKnora/ (product)
- github.com/Tencent/WeKnora/commit/d7ccd5ba517cc3968e6d5000a2ab0f4b51ef1dda (patch)
- github.com/Tencent/WeKnora/pull/3305 (issue-tracking, patch)
- github.com/Tencent/WeKnora/releases/tag/v0.8.2 (patch)
- github.com/k4z01/WeKnora-SQL-Validation-Bypass/blob/main/weknora-sql-validation… (related)
- vuldb.com/cve/CVE-2026-108821 (third-party-advisory)
- vuldb.com/submit/964272 (third-party-advisory)
- vuldb.com/vuln/416598 (technical-description, vdb-entry)
- vuldb.com/vuln/416598/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-108821?
- CVE-2026-108821 is a medium-severity vulnerability in Tencent Weknora, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-10-12.
- How severe is CVE-2026-108821?
- Medium severity. CVSS v3 base score is 6.3 out of 10.