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CVE-2026-19773

Опубликовано: 15 сент. 2026
Источник: nvd
CVSS3: 9.8
EPSS Низкий

Описание

libwebsockets HTTP/2 HPACK Path Header Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of libwebsockets. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the parsing of HTTP/2 HPACK path header. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-31036.

EPSS

Процентиль: 49%
0.00645
Низкий

9.8 Critical

CVSS3

Дефекты

CWE-787

Связанные уязвимости

CVSS3: 9.8
ubuntu
5 дней назад

(libwebsockets HTTP/2 HPACK Path Header Parsing Out-Of-Bounds Write Rem ...)

CVSS3: 9.8
debian
5 дней назад

libwebsockets HTTP/2 HPACK Path Header Parsing Out-Of-Bounds Write Rem ...

CVSS3: 9.8
github
5 дней назад

libwebsockets HTTP/2 HPACK Path Header Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of libwebsockets. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of HTTP/2 HPACK path header. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-31036.

EPSS

Процентиль: 49%
0.00645
Низкий

9.8 Critical

CVSS3

Дефекты

CWE-787