What is CVE-2026-11460?

CVE-2026-11460 is a high-severity vulnerability in Boost Serialization, classified under Improper Input Validation. CVSS score: 7.3/10. Published 2026-06-07.

How severe is CVE-2026-11460?

High severity. CVSS v3 base score is 7.3 out of 10.

Improper input validation in Boost Serialization

CVE-2026-11460

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.003 (23.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Boost Serialization — versions 1.0, 1.1, 1.2

Weakness classification (CWE)

References

cna@vuldb.com (exploit)
cna@vuldb.com (issue-tracking)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (vdb-entry)
cna@vuldb.com (signature, permissions-required)

Frequently asked questions

What is CVE-2026-11460?: CVE-2026-11460 is a high-severity vulnerability in Boost Serialization, classified under Improper Input Validation. CVSS score: 7.3/10. Published 2026-06-07.
How severe is CVE-2026-11460?: High severity. CVSS v3 base score is 7.3 out of 10.