CVE-2026-115482

Published: Ott 22, 2026 Last Modified: Ott 22, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

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.

770

Allocation of Resources Without Limits or Throttling

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other)
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
https://foxio.io/blog/header-accordions-qpack-amplification…
https://foxio.io/blog/header-accordions-qpack-amplification-attacks-against-htt…
https://github.com/litespeedtech/lsquic/compare/v4.8.2...v4…
https://github.com/litespeedtech/lsquic/compare/v4.8.2...v4.9.0
https://github.com/litespeedtech/lsquic/pull/666
https://github.com/litespeedtech/lsquic/pull/666