CVE-2026-82623

A vulnerability was detected in open62541 up to 1.5.5. Affected by this vulnerability is the function UADataValuebackendcopyRange of the file plugins/historydata/uahistorydatabackend_memory.c of the component History Backend. The manipulation results in use after free. The attack can be launched remotely. The exploit is now public and may be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82623.json",
    "cna_assigner": "VulDB",
    "cwe_ids": [
        "CWE-119",
        "CWE-416"
    ]
}

References

Affected packages

Git / github.com/open62541/open62541

Affected ranges

Type

GIT

Repo

https://github.com/open62541/open62541

Events

Introduced

b90fbfac5ef484089447bf5e3fe6ad7baaaebada

Last affected

3bdeed5dfe8309cecabf36e04afe956b7f72ebd8

Database specific

Show details

{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "1.5.0"
        },
        {
            "last_affected": "1.5.0"
        },
        {
            "introduced": "1.5.1"
        },
        {
            "last_affected": "1.5.1"
        },
        {
            "introduced": "1.5.2"
        },
        {
            "last_affected": "1.5.2"
        },
        {
            "introduced": "1.5.3"
        },
        {
            "last_affected": "1.5.3"
        },
        {
            "introduced": "1.5.4"
        },
        {
            "last_affected": "1.5.4"
        },
        {
            "introduced": "1.5.5"
        },
        {
            "last_affected": "1.5.5"
        }
    ]
}

Affected versions

1.*

1.5.0

1.5.1

1.5.2

1.5.3

1.5.4

1.5.5

v1.*

v1.5.0

v1.5.1

v1.5.2

v1.5.3

v1.5.4

v1.5.5

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82623.json"