CVE-2026-13513 MyScale MyScaleDB SegmentId.h getCacheKey data authenticity

Low 2.3 Published Updated

Attackers can bypass data authenticity checks in MyScaleDB's cache key generation, potentially compromising data integrity or confidentiality.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-13513?

CVE-2026-13513 is a low-severity vulnerability in MyScaleDB, published on 28 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-345

Which versions are affected by CVE-2026-13513?

How do I fix CVE-2026-13513?

No fix has been published for CVE-2026-13513 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-13513 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13513 exists.

Sources

Also known as GHSA-q6r3-vph9-qrqg.

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