Improper validation of packet length during tls-crypt-v2 key extraction in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows authenticated attackers to trigger a fatal assertion and cause a denial of service via a specially crafted packet.
{
"cwe_ids": [
"CWE-617"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35058.json",
"cna_assigner": "OpenVPN",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "2.6.0"
},
{
"last_affected": "2.6.19"
},
{
"introduced": "2.7_alpha1"
},
{
"last_affected": "2.7.1"
}
],
"source": "AFFECTED_FIELD"
},
{
"extracted_events": [
{
"introduced": "2.6.0"
},
{
"fixed": "2.6.19"
},
{
"introduced": "2.7_alpha1"
},
{
"fixed": "2.7.1"
}
],
"source": "DESCRIPTION"
}
]
}