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CVE-2026-55204

Опубликовано: 18 июн. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 7.5

Описание

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that fails to validate the return value of hpack_dht_defrag() when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memory pressure to dereference a NULL pointer and crash HAProxy worker processes, causing denial of service.

РелизСтатусПримечание
devel

not-affected

3.2.9-1ubuntu3
esm-infra-legacy/xenial

needs-triage

esm-infra/bionic

needs-triage

esm-infra/focal

needs-triage

jammy

released

2.4.30-0ubuntu0.22.04.2
noble

released

2.8.16-0ubuntu0.24.04.3
questing

released

3.0.12-0ubuntu0.25.10.5
resolute

released

3.2.9-1ubuntu2.2
upstream

needs-triage

Показывать по

EPSS

Процентиль: 39%
0.00484
Низкий

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 7.5
redhat
около 2 месяцев назад

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that fails to validate the return value of hpack_dht_defrag() when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memory pressure to dereference a NULL pointer and crash HAProxy worker processes, causing denial of service.

CVSS3: 7.5
nvd
около 2 месяцев назад

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that fails to validate the return value of hpack_dht_defrag() when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memory pressure to dereference a NULL pointer and crash HAProxy worker processes, causing denial of service.

CVSS3: 7.5
msrc
около 1 месяца назад

HAProxy - NULL Pointer Dereference in hpack_dht_insert Function

CVSS3: 7.5
debian
около 2 месяцев назад

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null point ...

CVSS3: 7.5
github
около 2 месяцев назад

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that fails to validate the return value of hpack_dht_defrag() when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memory pressure to dereference a NULL pointer and crash HAProxy worker processes, causing denial of service.

EPSS

Процентиль: 39%
0.00484
Низкий

7.5 High

CVSS3