VDB
RHSA-2026:18041
RHSA-2026:18041
PUBLISHED
CVSS 8.100000381469727 HIGH
A flaw was found in NGINX, specifically within the ngx_http_rewrite_module. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests under specific rewrite configurations. This can lead to a heap buffer overflow in the NGINX worker process, which may result in arbitrary code execution if Address Space Layout Randomization (ASLR), a security technique to prevent exploitation, is disabled. Otherwise, this flaw causes a denial of service due to a restart of the NGINX worker process.
Risk Scores
CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | nginx-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.s390x (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-debugsource-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.aarch64 (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-stream-debuginfo-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.x86_64 (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.ppc64le (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.aarch64 (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-devel-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.ppc64le (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-stream-debuginfo-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.s390x (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-mail-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.s390x (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-http-image-filter-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.s390x (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-http-xslt-filter-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.aarch64 (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-mail-debuginfo-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.ppc64le (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-stream-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.ppc64le (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-mail-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.aarch64 (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-http-perl-debuginfo-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.x86_64 (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-stream-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.s390x (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-all-modules-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.noarch (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-mail-debuginfo-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.x86_64 (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-mail-debuginfo-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.s390x (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-http-image-filter-debuginfo-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.aarch64 (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
| Red Hat | nginx-mod-http-perl-1:1.24.0-3.module+el8.10.0+24290+dc7f88b5.1.ppc64le (nginx:1.24) as a component of Red Hat Enterprise Linux AppStream (v. 8) | 1.24.0-3.module |
…and 39 more
Timeline
- May 18, 2026 CVE Published
- Jun 23, 2026 CVE Updated
- Jun 23, 2026 Distribution Patch
- Jun 23, 2026 Distribution Patch
- Jun 23, 2026 Security Advisory
- Jun 23, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:18041 advisory
- https://access.redhat.com/security/updates/classification/#critical advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2477116 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_18041.json advisory
- https://access.redhat.com/security/cve/CVE-2026-42945 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-42945 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-42945 advisory
- https://depthfirst.com/nginx-rift advisory
- https://my.f5.com/manage/s/article/K000161019 advisory