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

Status: published. Published: 2026-06-07. Updated: 2026-11-02.

A flaw has been found in Boost Serialization. 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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Boost / Serialization: 1.32.0 (affected); 1.33.0 (affected); 1.33.1 (affected); 1.34.0 (affected); 1.34.1 (affected); 1.35.0 (affected); 1.36.0 (affected); 1.37.0 (affected); 1.38.0 (affected); 1.39.0 (affected); 1.40.0 (affected); 1.41.0 (affected); 1.42.0 (affected); 1.43.0 (affected); 1.44.0 (affected); 1.45.0 (affected); 1.46.0 (affected); 1.46.1 (affected); 1.47.0 (affected); 1.48.0 (affected); 1.49.0 (affected); 1.50.0 (affected); 1.51.0 (affected); 1.52.0 (affected); 1.53.0 (affected); 1.54.0 (affected); 1.55.0 (affected); 1.56.0 (affected); 1.57.0 (affected); 1.58.0 (affected); 1.59.0 (affected); 1.60.0 (affected); 1.61.0 (affected); 1.62.0 (affected); 1.63.0 (affected); 1.64.0 (affected); 1.65.0 (affected); 1.65.1 (affected); 1.66.0 (affected); 1.67.0 (affected); 1.68.0 (affected); 1.69.0 (affected); 1.70.0 (affected); 1.71.0 (affected); 1.72.0 (affected); 1.73.0 (affected); 1.74.0 (affected); 1.75.0 (affected); 1.76.0 (affected); 1.77.0 (affected); 1.78.0 (affected); 1.79.0 (affected); 1.80.0 (affected); 1.81.0 (affected); 1.82.0 (affected); 1.83.0 (affected); 1.84.0 (affected); 1.85.0 (affected); 1.86.0 (affected); 1.87.0 (affected); 1.88.0 (affected); 1.89.0 (affected); 1.90.0 (affected); 1.91.0 (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 6.3 (medium); CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P; source: CNA: VulDB

- CVSS 3.1: 7.3 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R; source: CNA: VulDB

- CVSS 3.0: 7.3 (high); CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R; source: CNA: VulDB

- CVSS 2.0: 7.5 (high); AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR; source: CNA: VulDB

- CISA KEV: No listing in collected sources

- EPSS: 0.31% as of 2026-11-02; percentile 23.96%

- SSVC: exploitation poc; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-1287, CWE-20

## Exploit evidence

- exploit: https://gist.github.com/TrebledJ/b7c872f869b5ed7cbd936f71f16c7d75 (CNA: VulDB)

## References

- https://vuldb.com/vuln/369080 (CNA: VulDB; vdb-entry)

- https://vuldb.com/vuln/369080/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-11460 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/814455 (CNA: VulDB; third-party-advisory)

- https://github.com/boostorg/serialization/issues/331 (CNA: VulDB; issue-tracking)

- https://gist.github.com/TrebledJ/b7c872f869b5ed7cbd936f71f16c7d75 (CNA: VulDB; exploit)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-11460; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-11460; retrieved 2026-11-02; source updated Not reported

Revision: b612f73ca72f6eb7340ba7bd58278b340efcbcae707fb01f2d3c432e4b18dcd6

Canonical: https://y2.dev/cve/CVE-2026-11460

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