Vulnerability Intelligence Report
CVE-2026-115482
In lsquic before 4.9.0, the HTTP/3 implementation can use an excessive amount of memory because the number of buffered header sets is not limited, as demonstrated by a QPACK amplification attack. This is related to header_out_dynamic_entry and es_max_header_list_size.
No Active Exploit Signals
CVSS Base Score
7.5
HIGH
Exploitability:3.9
Impact Score:3.6
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Weaknesses (CWE)
CWE-770 ↗CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| litespeedtech | lsquic | 0 < 4.9.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2026-10-22T15:07:30 |
| Published | 2026-10-22T15:07:30 |
| Last Updated | 2026-10-22T19:00:31 |
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