CVE-2026-9521

Source
https://cve.org/CVERecord?id=CVE-2026-9521
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-9521.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-9521
Published
2026-05-26T02:00:15.197Z
Modified
2026-07-15T01:49:11.434197136Z
Severity
  • 2.9 (Low) CVSS_V4 - 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 CVSS Calculator
Summary
fraillt bitsery std_smart_ptr.h loadFromSharedState improper validation of specified type of input
Details

A security vulnerability has been detected in fraillt bitsery up to 5.2.4. Affected is the function loadFromSharedState in the library include/bitsery/ext/stdsmartptr.h. Such manipulation leads to improper validation of specified type of input. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 5.2.5 is able to address this issue. The name of the patch is 66d16516e24893bebc1c8af52bf2fe9ad0735061. Upgrading the affected component is advised.

Database specific
{
    "cna_assigner": "VulDB",
    "cwe_ids": [
        "CWE-1287",
        "CWE-20"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9521.json"
}
References

Affected packages

Git / github.com/fraillt/bitsery

Affected ranges

Type
GIT
Repo
https://github.com/fraillt/bitsery
Events
Database specific
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "5.2.0"
        },
        {
            "last_affected": "5.2.0"
        },
        {
            "introduced": "5.2.1"
        },
        {
            "last_affected": "5.2.1"
        },
        {
            "introduced": "5.2.2"
        },
        {
            "last_affected": "5.2.2"
        },
        {
            "introduced": "5.2.3"
        },
        {
            "last_affected": "5.2.3"
        },
        {
            "introduced": "5.2.4"
        },
        {
            "last_affected": "5.2.4"
        }
    ]
}

Affected versions

5.*
5.2.0
5.2.1
5.2.2
5.2.3
5.2.4
v5.*
v5.2.0
v5.2.1
v5.2.2
v5.2.3
v5.2.4

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-9521.json"