# CVE-2026-108821: Tencent WeKnora SQL Validator inject.go validateSubquery sql injection

> Remote attackers can exploit a SQL injection flaw in the SQL Validator to read or modify data, requiring an upgrade to the latest version.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Oct 2026
- **Updated:** 13 Oct 2026
- **Also known as:** GHSA-36w2-ffqw-gx86

## What is CVE-2026-108821?

CVE-2026-108821 is a medium-severity SQL injection vulnerability in Tencent WeKnora, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

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.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2026-108821?


## How do I fix CVE-2026-108821?

No fix has been published for CVE-2026-108821 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-108821 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108821 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-108821 and fix it if it is affected.

What it is: CVE-2026-108821 is a medium-severity SQL injection vulnerability in Tencent WeKnora, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108821 exists.

Affected product: Tencent WeKnora. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-108821/ (Markdown: https://insights.sbomify.com/CVE-2026-108821/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-108821
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-108821
- OSV: https://osv.dev/vulnerability/CVE-2026-108821

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-108821/
Summaries are generated and may contain mistakes; the official description above is the record.