CVE-2026-13513

MEDIUM

MyScale MyScaleDB SegmentId.h getCacheKey data authenticity

Title source: cna
STIX 2.1

Description

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.

References (7)

Core 7
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-374521 | MyScale MyScaleDB SegmentId.h getCacheKey data authenticity
https://vuldb.com/vuln/374521
Signature, Permissions Required signature permissions-required
VDB-374521 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/374521/cti
Third Party Advisory third-party-advisory
CVE-2026-13513 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-13513
Third Party Advisory third-party-advisory
Submit #838878 | MyScale MyScaleDB 1.8.0 source tree at commit 20a16d32; likely affected where the same vector-index mutation/cache code is present CWE-345 Insufficient Verification of Data Authenticity
https://vuldb.com/submit/838878
Exploit exploit issue-tracking
https://github.com/myscale/MyScaleDB/issues/54

Scores

CVSS v3 5.0
EPSS 0.0013
EPSS Percentile 3.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-345
Status published
Products (9)
MyScale/MyScaleDB 1.0
MyScale/MyScaleDB 1.1
MyScale/MyScaleDB 1.2
MyScale/MyScaleDB 1.3
MyScale/MyScaleDB 1.4
MyScale/MyScaleDB 1.5
MyScale/MyScaleDB 1.6
MyScale/MyScaleDB 1.7
MyScale/MyScaleDB 1.8.0
Published Jun 29, 2026
Tracked Since Jun 29, 2026