---
title: "CVE-2026-30855: WeKnora Vulnerable to Broken Access Control in Tenant Management"
url: https://erroneo.us/security/cve/CVE-2026-30855/
description: "CVE-2026-30855 (github.com/Tencent/WeKnora (Go)): WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-03-07
date_modified: 2026-03-09
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-30855"
kev: false
cvss: 8.8
epss: 0.00477
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-30855: WeKnora Vulnerable to Broken Access Control in Tenant Management

**Signal:** Normal patch cycle. No exploitation signal; fix it in your next routine update if you are affected. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.5% , percentile 40: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 40% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes github.com/Tencent/WeKnora (Go) <= 0.3.1, fixed in 0.3.2 . Check your lockfile, including transitive dependencies.

## What it is

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.

## Affected packages

- Go `github.com/Tencent/WeKnora` <= 0.3.1 → fixed: 0.3.2

## Affected products (CVE record)

- Tencent WeKnora: < 0.3.2

## Severity

- GitHub_M CVSS 3.1: 8.8 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.48% probability of exploitation activity in the next 30 days; percentile 40.

## Sources

- [GitHub Advisory GHSA-ccj6-79j6-cq5q](https://github.com/advisories/GHSA-ccj6-79j6-cq5q)
- [CVE.org record CVE-2026-30855](https://www.cve.org/CVERecord?id=CVE-2026-30855)
- [NVD entry CVE-2026-30855](https://nvd.nist.gov/vuln/detail/CVE-2026-30855)
- [github.com](https://github.com/Tencent/WeKnora/security/advisories/GHSA-ccj6-79j6-cq5q)

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Source page: https://erroneo.us/security/cve/CVE-2026-30855/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt