{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/centos-stream8els/vex/2025/cve-2025-46727-els_os-centos-stream8els.json" } ], "tracking": { "current_release_date": "2026-09-24T09:57:28Z", "generator": { "date": "2026-09-24T09:57:28Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2025-46727-ELS_OS-CENTOS-STREAM8ELS", "initial_release_date": "2025-05-07T23:15:00Z", "revision_history": [ { "date": "2025-05-07T23:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-09-24T09:57:28Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2025-46727" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 8", "product": { "name": "Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:8:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" }, { "branches": [ { "category": "product_version", "name": "pcs-0:0.10.18-2.el8.x86_64", "product": { "name": "pcs-0:0.10.18-2.el8.x86_64", "product_id": "pcs-0:0.10.18-2.el8.x86_64", "product_identification_helper": { "purl": "pkg:rpm/centos/pcs@0.10.18-2.el8?arch=x86_64" } } }, { "category": "product_version", "name": "pcs-snmp-0:0.10.18-2.el8.x86_64", "product": { "name": "pcs-snmp-0:0.10.18-2.el8.x86_64", "product_id": "pcs-snmp-0:0.10.18-2.el8.x86_64", "product_identification_helper": { "purl": "pkg:rpm/centos/pcs-snmp@0.10.18-2.el8?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "Red Hat, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product": { "name": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_id": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/pcs@0.10.18-2.el8.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product": { "name": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_id": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/pcs-snmp@0.10.18-2.el8.tuxcare.els1?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64" }, "product_reference": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-Stream-8" }, { "category": "default_component_of", "full_product_name": { "name": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64" }, "product_reference": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-Stream-8" }, { "category": "default_component_of", "full_product_name": { "name": "pcs-0:0.10.18-2.el8.x86_64 as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:pcs-0:0.10.18-2.el8.x86_64" }, "product_reference": "pcs-0:0.10.18-2.el8.x86_64", "relates_to_product_reference": "CentOS-Stream-8" }, { "category": "default_component_of", "full_product_name": { "name": "pcs-snmp-0:0.10.18-2.el8.x86_64 as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.x86_64" }, "product_reference": "pcs-snmp-0:0.10.18-2.el8.x86_64", "relates_to_product_reference": "CentOS-Stream-8" } ] }, "vulnerabilities": [ { "cve": "CVE-2025-46727", "cwe": { "id": "CWE-400", "name": "Uncontrolled Resource Consumption" }, "notes": [ { "category": "description", "text": "Rack is a modular Ruby web server interface. Prior to versions 2.2.14, 3.0.16, and 3.1.14, `Rack::QueryParser` parses query strings and `application/x-www-form-urlencoded` bodies into Ruby data structures without imposing any limit on the number of parameters, allowing attackers to send requests with extremely large numbers of parameters. The vulnerability arises because `Rack::QueryParser` iterates over each `&`-separated key-value pair and adds it to a Hash without enforcing an upper bound on the total number of parameters. This allows an attacker to send a single request containing hundreds of thousands (or more) of parameters, which consumes excessive memory and CPU during parsing. An attacker can trigger denial of service by sending specifically crafted HTTP requests, which can cause memory exhaustion or pin CPU resources, stalling or crashing the Rack server. This results in full service disruption until the affected worker is restarted. Versions 2.2.14, 3.0.16, and 3.1.14 fix the issue. Some other mitigations are available. One may use middleware to enforce a maximum query string size or parameter count, or employ a reverse proxy (such as Nginx) to limit request sizes and reject oversized query strings or bodies. Limiting request body sizes and query string lengths at the web server or CDN level is an effective mitigation.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "CentOS-Stream-8:pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64" ], "known_affected": [ "CentOS-Stream-8:pcs-0:0.10.18-2.el8.x86_64", "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2025-46727" }, { "category": "external", "summary": "https://github.com/rack/rack/commit/2bb5263b464b65ba4b648996a579dbd180d2b712", "url": "https://github.com/rack/rack/commit/2bb5263b464b65ba4b648996a579dbd180d2b712" }, { "category": "external", "summary": "https://github.com/rack/rack/commit/3f5a4249118d09d199fe480466c8c6717e43b6e3", "url": "https://github.com/rack/rack/commit/3f5a4249118d09d199fe480466c8c6717e43b6e3" }, { "category": "external", "summary": "https://github.com/rack/rack/commit/cd6b70a1f2a1016b73dc906f924869f4902c2d74", "url": "https://github.com/rack/rack/commit/cd6b70a1f2a1016b73dc906f924869f4902c2d74" }, { "category": "external", "summary": "https://github.com/rack/rack/security/advisories/GHSA-gjh7-p2fx-99vx", "url": "https://github.com/rack/rack/security/advisories/GHSA-gjh7-p2fx-99vx" } ], "release_date": "2025-05-07T23:15:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-09-24T09:55:53.256165Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1790243751", "product_ids": [ "CentOS-Stream-8:pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1790243751" }, { "category": "none_available", "date": "2025-05-07T23:15:00Z", "details": "Affected", "product_ids": [ "CentOS-Stream-8:pcs-0:0.10.18-2.el8.x86_64", "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.x86_64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "CentOS-Stream-8:pcs-0:0.10.18-2.el8.x86_64", "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }