A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to read the memory of the NGINX worker process or restart it. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Details
- CVSS 4.0 Base Score: 8.3 (HIGH)
- CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
- CVSS 3.1 Base Score: 7.4
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade nginx | May 15, 2026 | May 13, 2026 |
| Amazon Linux Ami 2 | — | Upgrade nginx-mod-mailUpgrade nginx-mod-http-xslt-filterUpgrade nginx-mod-streamUpgrade nginx-coreUpgrade nginx-debuginfoUpgrade nginx-mod-http-image-filterUpgrade nginx-mod-http-perlUpgrade nginx-all-modulesUpgrade nginx-mod-http-geoipUpgrade nginx-filesystemUpgrade nginx-mod-develUpgrade nginx | Jun 8, 2026 | Jun 8, 2026 |
| Amazon_linux_2023 | — | Upgrade nginx-mod-http-image-filterUpgrade nginx-mod-http-image-filter-debuginfoUpgrade nginx-mod-mailUpgrade nginx-all-modulesUpgrade nginx-core-debuginfoUpgrade nginx-mod-stream-debuginfoUpgrade nginx-mod-http-perl-debuginfoUpgrade nginx-mod-http-xslt-filter-debuginfoUpgrade nginxUpgrade nginx-mod-http-perlUpgrade nginx-mod-streamUpgrade nginx-mod-http-xslt-filterUpgrade nginx-filesystemUpgrade nginx-coreUpgrade nginx-mod-develUpgrade nginx-debugsourceUpgrade nginx-mod-mail-debuginfoUpgrade nginx-debuginfo | May 28, 2026 | May 13, 2026 |
| Debian | — | Upgrade nginx | May 17, 2026 | May 17, 2026 |
| Freebsd | — | Upgrade nginx-develUpgrade nginx | May 21, 2026 | May 19, 2026 |
| Gentoo Linux | — | Upgrade www-servers/nginx. | Aug 17, 2026 | Aug 17, 2026 |
| Nginx | — | Upgrade to nginx version 1.30.1Upgrade to nginx version 1.31.0 | May 14, 2026 | May 13, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | May 13, 2026 |
| Ubuntu | — | Upgrade libnginx-mod-http-lua (Ubuntu Pro)Upgrade nginx-full (Ubuntu Pro)Upgrade nginx-coreUpgrade nginx-extrasUpgrade libnginx-mod-http-uploadprogress (Ubuntu Pro)Upgrade nginx-light (Ubuntu Pro)Upgrade libnginx-mod-http-geoip (Ubuntu Pro)Upgrade libnginx-mod-http-xslt-filter (Ubuntu Pro)Upgrade nginx (Ubuntu Pro)Upgrade nginx-core (Ubuntu Pro)Upgrade libnginx-mod-http-auth-pam (Ubuntu Pro)Upgrade libnginx-mod-http-headers-more-filter (Ubuntu Pro)Upgrade nginx-fullUpgrade libnginx-mod-stream (Ubuntu Pro)Upgrade libnginx-mod-nchan (Ubuntu Pro)Upgrade libnginx-mod-http-cache-purge (Ubuntu Pro)Upgrade nginx-common (Ubuntu Pro)Upgrade nginxUpgrade libnginx-mod-http-perl (Ubuntu Pro)Upgrade nginx-lightUpgrade libnginx-mod-mail (Ubuntu Pro)Upgrade libnginx-mod-http-dav-ext (Ubuntu Pro)Upgrade libnginx-mod-http-fancyindex (Ubuntu Pro)Upgrade libnginx-mod-http-image-filter (Ubuntu Pro)Upgrade libnginx-mod-http-echo (Ubuntu Pro)Upgrade nginx-extras (Ubuntu Pro)Upgrade libnginx-mod-rtmp (Ubuntu Pro)Upgrade nginx-naxsi (Ubuntu Pro)Upgrade libnginx-mod-http-subs-filter (Ubuntu Pro)Upgrade libnginx-mod-http-ndk (Ubuntu Pro)Upgrade libnginx-mod-http-upstream-fair (Ubuntu Pro) | Jun 2, 2026 | Jun 1, 2026 |
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