How severe is CVE-2026-34999?

CVE-2026-34999 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-34999 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34999?

CVE-2026-34999 affects Volcengine Openviking. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34999?

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

Does CVE-2026-34999 have an EU (EUVD) identifier?

Yes. CVE-2026-34999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17905.

When was CVE-2026-34999 published?

CVE-2026-34999 was published on 2026-04-01 and last updated on 2026-06-17.

CVE-2026-34999

CVE-2026-34999 is a medium-severity vulnerability in Volcengine Openviking 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-306.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 6.9
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17905
Weakness: CWE-306
Affected product: Volcengine Openviking
Published: 2026-04-01
Last modified: 2026-06-17

Description

OpenViking versions 0.2.5 prior to 0.2.14 contain a missing authentication vulnerability in the bot proxy router that allows remote unauthenticated attackers to access protected bot proxy functionality by sending requests to the POST /bot/v1/chat and POST /bot/v1/chat/stream endpoints. Attackers can bypass authentication checks and interact directly with the upstream bot backend through the OpenViking proxy without providing valid credentials.

Frequently asked questions

What is CVE-2026-34999?: OpenViking versions 0.2.5 prior to 0.2.14 contain a missing authentication vulnerability in the bot proxy router that allows remote unauthenticated attackers to access protected bot proxy functionality by sending requests to the POST /bot/v1/chat and POST /bot/v1/chat/stream endpoints. Attackers can bypass authentication checks and interact directly with the upstream bot backend through the OpenViking proxy without providing valid credentials.
How severe is CVE-2026-34999?: CVE-2026-34999 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-34999 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34999?: CVE-2026-34999 affects Volcengine Openviking. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34999?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-34999 have an EU (EUVD) identifier?: Yes. CVE-2026-34999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17905.
When was CVE-2026-34999 published?: CVE-2026-34999 was published on 2026-04-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:volcengine:openviking:*:*:*:*:*:*:*:*

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