RHSA-2026:17752

Vulnerability from csaf_opensuse - Published: 2026-05-15 00:00 - Updated: 2026-10-09 09:43
Summary
security update for nginx
Severity
Critical
Notes
Title of the patch: security update for nginx
Description of the patch: This security update provides a functional equivalent of RHSA-2026:17752. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2026:17752.
Patchnames: RHSA-2026:17752
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2026-42945
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Liberty Linux 9.6 EMS:nginx-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:nginx-all-modules-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.noarch::nginx:1.24 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:nginx-core-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:nginx-filesystem-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.noarch::nginx:1.24 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:nginx-mod-devel-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:nginx-mod-http-image-filter-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:nginx-mod-http-perl-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:nginx-mod-http-xslt-filter-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:nginx-mod-mail-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:nginx-mod-stream-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24 —
Vendor Fix
Threats
Impact important
References
To clipboard 

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          "product_id": "SUSE Liberty Linux 9.6 EMS:nginx-mod-mail-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24"
        },
        "product_reference": "nginx-mod-mail-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
        "relates_to_product_reference": "SUSE Liberty Linux 9.6 EMS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "nginx-mod-stream-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24 as component of SUSE Liberty Linux 9.6 EMS",
          "product_id": "SUSE Liberty Linux 9.6 EMS:nginx-mod-stream-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24"
        },
        "product_reference": "nginx-mod-stream-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
        "relates_to_product_reference": "SUSE Liberty Linux 9.6 EMS"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-42945",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-42945"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "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.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Liberty Linux 9.6 EMS:nginx-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
          "SUSE Liberty Linux 9.6 EMS:nginx-all-modules-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.noarch::nginx:1.24",
          "SUSE Liberty Linux 9.6 EMS:nginx-core-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
          "SUSE Liberty Linux 9.6 EMS:nginx-filesystem-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.noarch::nginx:1.24",
          "SUSE Liberty Linux 9.6 EMS:nginx-mod-devel-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
          "SUSE Liberty Linux 9.6 EMS:nginx-mod-http-image-filter-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
          "SUSE Liberty Linux 9.6 EMS:nginx-mod-http-perl-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
          "SUSE Liberty Linux 9.6 EMS:nginx-mod-http-xslt-filter-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
          "SUSE Liberty Linux 9.6 EMS:nginx-mod-mail-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
          "SUSE Liberty Linux 9.6 EMS:nginx-mod-stream-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-42945",
          "url": "https://www.suse.com/security/cve/CVE-2026-42945"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1265232 for CVE-2026-42945",
          "url": "https://bugzilla.suse.com/1265232"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1265566 for CVE-2026-42945",
          "url": "https://bugzilla.suse.com/1265566"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Liberty Linux 9.6 EMS:nginx-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-all-modules-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.noarch::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-core-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-filesystem-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.noarch::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-devel-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-http-image-filter-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-http-perl-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-http-xslt-filter-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-mail-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-stream-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Liberty Linux 9.6 EMS:nginx-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-all-modules-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.noarch::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-core-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-filesystem-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.noarch::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-devel-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-http-image-filter-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-http-perl-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-http-xslt-filter-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-mail-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24",
            "SUSE Liberty Linux 9.6 EMS:nginx-mod-stream-1:1.24.0-4.module+el9.6.0+24297+b3b39a7f.3.x86_64::nginx:1.24"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-05-15T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-42945"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.