How severe is CVE-2026-30859?

CVE-2026-30859 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-30859 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30859?

CVE-2026-30859 affects Tencent Weknora. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30859?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-30859 have an EU (EUVD) identifier?

Yes. CVE-2026-30859 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10182.

When was CVE-2026-30859 published?

CVE-2026-30859 was published on 2026-03-07 and last updated on 2026-06-17.

CVE-2026-30859

CVE-2026-30859 is a medium-severity vulnerability in Tencent Weknora with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10182
Weakness: CWE-284
Affected product: Tencent Weknora
Published: 2026-03-07
Last modified: 2026-06-17

Description

WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.2.12, a broken access control vulnerability in the database query tool allows any authenticated tenant to read sensitive data belonging to other tenants, including API keys, model configurations, and private messages. The application fails to enforce tenant isolation on critical tables (models, messages, embeddings), enabling unauthorized cross-tenant data access with user-level authentication privileges. This issue has been patched in version 0.2.12.

Frequently asked questions

What is CVE-2026-30859?: WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.2.12, a broken access control vulnerability in the database query tool allows any authenticated tenant to read sensitive data belonging to other tenants, including API keys, model configurations, and private messages. The application fails to enforce tenant isolation on critical tables (models, messages, embeddings), enabling unauthorized cross-tenant data access with user-level authentication privileges. This issue has been patched in version 0.2.12.
How severe is CVE-2026-30859?: CVE-2026-30859 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-30859 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30859?: CVE-2026-30859 affects Tencent Weknora. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30859?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-30859 have an EU (EUVD) identifier?: Yes. CVE-2026-30859 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10182.
When was CVE-2026-30859 published?: CVE-2026-30859 was published on 2026-03-07 and last updated on 2026-06-17.

References

https://github.com/Tencent/WeKnora/security/advisories/GHSA-2f4c-vrjq-rcgv

Affected products (1)

cpe:2.3:a:tencent:weknora:*:*:*:*:*:*:*:*

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