---
id: CVE-2026-13513
title: A security flaw has been discovered in MyScale MyScaleDB up to 1.8.0
summary: >-
  A security flaw has been discovered in MyScale MyScaleDB up to 1.8.0. This
  vulnerability affects the function SegmentId::getCacheKey in the library
  src/VectorIndex/Common/SegmentId.h. The manipulation results in insufficient
  verification…
severity: medium
cvss: 5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-345
published: '2026-06-29'
updated: '2026-06-29'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-13513'
references:
  - url: 'https://github.com/myscale/MyScaleDB/'
    label: cna@vuldb.com
  - url: 'https://github.com/myscale/MyScaleDB/issues/54'
    label: cna@vuldb.com
  - url: 'https://github.com/myscale/MyScaleDB/pull/55'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-13513'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/838878'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/374521'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/374521/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-06-29T13:42:12.285Z'
epss: 0.0018
epssPercentile: 0.06767
---

## Overview

A security flaw has been discovered in MyScale MyScaleDB up to 1.8.0. This vulnerability affects the function SegmentId::getCacheKey in the library src/VectorIndex/Common/SegmentId.h. The manipulation results in insufficient verification of data authenticity. It is possible to launch the attack remotely. A high complexity level is associated with this attack. It is stated that the exploitability is difficult. The exploit has been released to the public and may be used for attacks. The pull request to fix this issue awaits acceptance.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.