How severe is CVE-2026-30855?

CVE-2026-30855 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-30855 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30855?

CVE-2026-30855 affects Tencent Weknora. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30855?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-30855 have an EU (EUVD) identifier?

Yes. CVE-2026-30855 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10178.

When was CVE-2026-30855 published?

CVE-2026-30855 was published on 2026-03-07 and last updated on 2026-06-17.

CVE-2026-30855

CVE-2026-30855 is a high-severity vulnerability in Tencent Weknora with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10178
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 0.3.2, 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.

Frequently asked questions

What is CVE-2026-30855?: 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.
How severe is CVE-2026-30855?: CVE-2026-30855 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-30855 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30855?: CVE-2026-30855 affects Tencent Weknora. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30855?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-30855 have an EU (EUVD) identifier?: Yes. CVE-2026-30855 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10178.
When was CVE-2026-30855 published?: CVE-2026-30855 was published on 2026-03-07 and last updated on 2026-06-17.

References

https://github.com/Tencent/WeKnora/security/advisories/GHSA-ccj6-79j6-cq5q

Affected products (1)

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

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