A memory leak in OpenVPN version 2.5.0 through 2.5.11, 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers with a valid tls-crypt-v2 client key to potentially cause a denial of service
{
"unresolved_ranges": [
{
"source": "AFFECTED_FIELD",
"extracted_events": [
{
"introduced": "2.5.0"
},
{
"last_affected": "2.5.11"
},
{
"introduced": "2.6.0"
},
{
"last_affected": "2.6.20"
},
{
"introduced": "2.7_alpha1"
},
{
"last_affected": "2.7.4"
}
]
},
{
"source": "DESCRIPTION",
"extracted_events": [
{
"introduced": "2.5.0"
},
{
"fixed": "2.5.11"
},
{
"introduced": "2.6.0"
},
{
"fixed": "2.6.20"
},
{
"introduced": "2.7_alpha1"
},
{
"fixed": "2.7.4"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13698.json",
"cwe_ids": [
"CWE-401",
"CWE-770"
],
"cna_assigner": "OpenVPN"
}{
"source": "CPE_RANGE",
"cpe": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*",
"extracted_events": [
{
"introduced": "2.5.0"
},
{
"last_affected": "2.5.11"
},
{
"introduced": "2.6.0"
},
{
"fixed": "2.6.21"
},
{
"introduced": "2.7"
},
{
"fixed": "2.7.5"
}
]
}