CVE-2026-13513
MyScale MyScaleDB SegmentId.h getCacheKey data authenticity
- State
- Published
- Severity
- 2.3 Low
- Published
- Jun 28, 2026
- Updated
- Jun 29, 2026
- Reserved
- Jun 28, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | 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:P | VulDB |
| 3.1 | 5.0 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 5.0 Medium | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.6 Medium | AV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-345 Insufficient Verification of Data Authenticity
Affected Products
| Product | Versions |
|---|---|
MyScaleDBMyScale |
|
References
- VDB-374521 | MyScale MyScaleDB SegmentId.h getCacheKey data authenticityvdb-entrytechnical-description
- VDB-374521 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-13513 | CVE Analysis and Reportthird-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 Authenticitythird-party-advisory
- https://github.com/myscale/MyScaleDB/issues/54exploitissue-tracking
- https://github.com/myscale/MyScaleDB/pull/55issue-trackingpatch
- https://github.com/myscale/MyScaleDB/product
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