{"id":"CVE-2026-15978","aliases":["EUVD-2026-51266","GHSA-cpqq-22v3-2wfm","GHSA-x6x2-r266-cx9p"],"status":"published","title":"CVE-2026-15978","description":"SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as SGLang will expose two endpoints that allow a remote attacker to trigger distributed weight broadcasting using NCCL and then triggering data transfer, attackers can exfiltrate all model weights.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00504,"percentile":0.43436,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2026-07-30T18:08:29Z","modified":"2026-10-28T02:30:24Z","products":[{"vendor":"lmsys","product":"sglang"},{"vendor":"sgl-project","product":"sglang"},{"vendor":"sglang","product":"sglang"}],"references":[{"url":"https://github.com/sgl-project/sglang/security/advisories/GHSA-cpqq-22v3-2wfm","tags":["Broken Link","advisory"]},{"url":"https://thoughts.apoorvdayal.com/posts/sglang-disclosures/","tags":["exploit","Third Party Advisory","Mitigation","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15978","tags":["advisory"]},{"url":"https://thoughts.apoorvdayal.com/posts/sglang-disclosures"},{"url":"https://github.com/advisories/GHSA-x6x2-r266-cx9p"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/15xxx/CVE-2026-15978.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-15978","title":"CVE-2026-15978","description":"SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as SGLang will expose two endpoints that allow a remote attacker to trigger distributed weight broadcasting using NCCL and then triggering data transfer, attackers can exfiltrate all model weights.","status":"published","published":"2026-07-30T18:08:29.228Z","modified":"2026-07-31T18:10:22.232Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T13:47:39.876248Z"}],"euvd":[{"id":"EUVD-2026-51266","description":"SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as SGLang will expose two endpoints that allow a remote attacker to trigger distributed weight broadcasting using NCCL and then triggering data transfer, attackers can exfiltrate all model weights.","status":"published","published":"2026-07-30T18:08:29Z","modified":"2026-07-31T18:10:22Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T18:02:25.522444Z"}],"ghsa":[{"id":"GHSA-x6x2-r266-cx9p","title":"SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as...","description":"SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as SGLang will expose two endpoints that allow a remote attacker to trigger distributed weight broadcasting using NCCL and then triggering data transfer, attackers can exfiltrate all model weights.","status":"published","published":"2026-07-30T21:31:49Z","modified":"2026-07-31T21:31:53Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:10:00.950607Z"}],"nvd":[{"id":"CVE-2026-15978","description":"SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as SGLang will expose two endpoints that allow a remote attacker to trigger distributed weight broadcasting using NCCL and then triggering data transfer, attackers can exfiltrate all model weights.","status":"published","published":"2026-07-30T19:17:08.993Z","modified":"2026-08-04T20:40:54.963Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:12:33.955581Z"}],"osv":[{"id":"CVE-2026-15978","title":"CVE-2026-15978","description":"SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as SGLang will expose two endpoints that allow a remote attacker to trigger distributed weight broadcasting using NCCL and then triggering data transfer, attackers can exfiltrate all model weights.","status":"published","published":"2026-07-30T18:08:29.228Z","modified":"2026-10-28T02:30:24.080346724Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:57.682091Z"}]}}