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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (22.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Boost Serialization — versions 1.0, 1.1, 1.2
Weakness classification (CWE)
References
- gist.github.com/TrebledJ/b7c872f869b5ed7cbd936f71f16c7d75 (exploit)
- github.com/boostorg/serialization/issues/331 (issue-tracking)
- vuldb.com/cve/CVE-2026-11460 (third-party-advisory)
- vuldb.com/submit/814455 (third-party-advisory)
- vuldb.com/vuln/369080 (vdb-entry)
- vuldb.com/vuln/369080/cti (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.