CVE-2026-24825 Denial of service in ydb

Medium 6.9 Published Updated

A memory leak in the YDB database's YAJL parser can cause out-of-memory conditions and server crashes, requiring a patch to prevent denial of service.

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

What is CVE-2026-24825?

CVE-2026-24825 is a medium-severity denial of service vulnerability in ydb-platform ydb, published on 27 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Missing Release of Memory after Effective Lifetime vulnerability in ydb-platform ydb (contrib/libs/yajl modules). This vulnerability is associated with program files yail_tree.C.

This issue affects ydb: through 24.4.4.2.

Weakness: CWE-401

Which versions are affected by CVE-2026-24825?

How do I fix CVE-2026-24825?

No fix has been published for CVE-2026-24825 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-24825 being exploited?

There is no known exploitation of CVE-2026-24825 in the wild and no public exploit code.

Sources

Also known as GHSA-xg4q-g85w-x6x5.

Is CVE-2026-24825 in your software?

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