CVE-2026-11460 Boost Serialization improper validation of specified type of input

Medium 6.3 Published Updated

Remote attackers can exploit improper input validation in Boost Serialization to potentially execute code or cause 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-2026-11460?

CVE-2026-11460 is a medium-severity unsafe deserialization vulnerability in Boost Serialization, published on 7 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A flaw has been found in Boost Serialization up to 1.91. The impacted element is an unknown function. This manipulation causes improper validation of specified type of input. It is possible to initiate the attack remotely. The exploit has been published and may be used. The maintainer was notified on Aug 2025 and a disclosure deadline was set for 90 days. The maintainer acknowledged but postponed indefinitely citing time concerns. No patch is currently available and the disclosure deadline has expired.

Weakness: CWE-20, CWE-1287

Which versions are affected by CVE-2026-11460?

How do I fix CVE-2026-11460?

No fix has been published for CVE-2026-11460 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2026-11460 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11460 exists.

Sources

Also known as GHSA-25jx-vqmc-84rq.

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