ALPINE-CVE-2026-42945
ALPINE-CVE-2026-42945
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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.
CVSS 9.2 · Kritisch · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Technologie-Stack: system · web
Betroffene Produkte und Versionen
nginx Alpine:v3.21
- Betroffene Versionsbereiche
- ECOSYSTEM: < 1.26.3-r1
Auf 1.26.3-r1 aktualisieren
nginx Alpine:v3.22
- Betroffene Versionsbereiche
- ECOSYSTEM: < 1.28.3-r1
Auf 1.28.3-r1 aktualisieren
nginx Alpine:v3.23
- Betroffene Versionsbereiche
- ECOSYSTEM: < 1.28.3-r1
Auf 1.28.3-r1 aktualisieren
nginx Alpine:v3.24
- Betroffene Versionsbereiche
- ECOSYSTEM: < 1.30.1-r0
Auf 1.30.1-r0 aktualisieren