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CVE-2026-42945

Опубликовано: 13 мая 2026
Источник: ubuntu
Приоритет: high
EPSS Средний
CVSS3: 8.1

Описание

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (for example, $1, $2) with a replacement string that includes a question mark (?). An unauthenticated attacker along with conditions beyond its control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

РелизСтатусПримечание
devel

not-affected

1.30.1-4ubuntu1
esm-infra-legacy/trusty

released

1.4.6-1ubuntu3.9+esm6
esm-infra-legacy/xenial

released

1.10.3-0ubuntu0.16.04.5+esm7
esm-infra/bionic

released

1.14.0-0ubuntu1.11+esm2
esm-infra/focal

released

1.18.0-0ubuntu1.7+esm1
esm-infra/xenial

ignored

end of ESM support, was needs-triage
jammy

released

1.18.0-6ubuntu14.11
noble

released

1.24.0-2ubuntu7.8
questing

released

1.28.0-6ubuntu1.3
resolute

released

1.28.3-2ubuntu1.1

Показывать по

EPSS

Процентиль: 99%
0.61469
Средний

8.1 High

CVSS3

Связанные уязвимости

CVSS3: 8.1
redhat
3 месяца назад

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (for example, $1, $2) with a replacement string that includes a question mark (?). An unauthenticated attacker along with conditions beyond its control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS3: 8.1
nvd
3 месяца назад

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (for example, $1, $2) with a replacement string that includes a question mark (?). An unauthenticated attacker along with conditions beyond its control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS3: 8.1
msrc
3 месяца назад

NGINX ngx_http_rewrite_module vulnerability

CVSS3: 8.1
debian
3 месяца назад

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ ...

rocky
2 месяца назад

Critical: nginx security update

EPSS

Процентиль: 99%
0.61469
Средний

8.1 High

CVSS3