How severe is CVE-2026-13507?

CVE-2026-13507 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-13507 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-13507?

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

When was CVE-2026-13507 published?

CVE-2026-13507 was published on 2026-06-28 and last updated on 2026-06-29.

CVE-2026-13507

CVE-2026-13507 is a medium-severity vulnerability with a CVSS 3.x base score of 5.0. 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-345.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
CVSS v2: 4.6
CVSS v4: 2.3
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Published: 2026-06-28
Last modified: 2026-06-29

Description

A vulnerability was detected in volcengine OpenViking up to 0.3.21. This affects the function str_to_uint64 of the file openviking/storage/vectordb/utils/str_to_uint64.py of the component Local VectorDB Primary-key Label Handler. The manipulation of the argument ID results in insufficient verification of data authenticity. The attack may be launched remotely. Attacks of this nature are highly complex. The exploitability is reported as difficult. The pull request to fix this issue awaits acceptance.

Frequently asked questions

What is CVE-2026-13507?: A vulnerability was detected in volcengine OpenViking up to 0.3.21. This affects the function str_to_uint64 of the file openviking/storage/vectordb/utils/str_to_uint64.py of the component Local VectorDB Primary-key Label Handler. The manipulation of the argument ID results in insufficient verification of data authenticity. The attack may be launched remotely. Attacks of this nature are highly complex. The exploitability is reported as difficult. The pull request to fix this issue awaits acceptance.
How severe is CVE-2026-13507?: CVE-2026-13507 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-13507 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-13507?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-13507 published?: CVE-2026-13507 was published on 2026-06-28 and last updated on 2026-06-29.

References

Other CWE-345 (Insufficient Verification of Data Authenticity) vulnerabilities

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