SGLangs replay_request_dump.py contains an insecure pickle.load() without validation and proper deserialization. An attacker can take advantage of this by providing a malicious .pkl file, which will execute the attackers code on the device running the script.
{
"cna_assigner": "certcc",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3989.json"
}{
"source": [
"AFFECTED_FIELD",
"CPE_RANGE",
"REFERENCES"
],
"cpe": "cpe:2.3:a:lmsys:sglang:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0.5.10"
},
{
"last_affected": "0.5.10"
},
{
"introduced": "0"
},
{
"fixed": "0.5.10"
}
]
}