PT-2026-121409 · Litespeedtech · Lsquic

CVE-2026-115482

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Published

2026-10-22

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Updated

2026-10-22

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.

Fix

Allocation of Resources Without Limits

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Weakness Enumeration

Related Identifiers

CVE-2026-115482

Affected Products

Lsquic