{ "document": { "aggregate_severity": { "text": "Important" }, "category": "csaf_security_advisory", "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" }, { "category": "details", "text": "CVE-2023-45539: reject '#' as part of the URI to prevent\n ACL bypass via path_end rules", "title": "Details" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776343034", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776343034" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/rhel7els/advisories/2026/clsa-2026_1776343034.json" } ], "tracking": { "current_release_date": "2026-04-16T12:37:41Z", "generator": { "date": "2026-04-16T12:37:41Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1776343034", "initial_release_date": "2026-04-16T12:37:41Z", "revision_history": [ { "date": "2026-04-16T12:37:41Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "haproxy: Fix of CVE-2023-45539" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux 7", "product": { "name": "Red Hat Enterprise Linux 7", "product_id": "Red-Hat-7", "product_identification_helper": { "cpe": "cpe:2.3:o:redhat:enterprise_linux:7:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Red Hat Enterprise Linux" } ], "category": "vendor", "name": "Red Hat, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64", "product": { "name": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64", "product_id": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/haproxy@1.5.18-9.el7_9.1.tuxcare.els1?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64 as a component of Red Hat Enterprise Linux 7", "product_id": "Red-Hat-7:haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64" }, "product_reference": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64", "relates_to_product_reference": "Red-Hat-7" } ] }, "vulnerabilities": [ { "cve": "CVE-2023-45539", "notes": [ { "category": "description", "text": "HAProxy before 2.8.2 accepts # as part of the URI component, which might allow remote attackers to obtain sensitive information or have unspecified other impact upon misinterpretation of a path_end rule, such as routing index.html#.png to a static server.", "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": [ "Red-Hat-7:haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2023-45539" }, { "category": "external", "summary": "https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=2eab6d354322932cfec2ed54de261e4347eca9a6", "url": "https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=2eab6d354322932cfec2ed54de261e4347eca9a6" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2023/12/msg00010.html", "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00010.html" }, { "category": "external", "summary": "https://lists.w3.org/Archives/Public/ietf-http-wg/2023JulSep/0070.html", "url": "https://lists.w3.org/Archives/Public/ietf-http-wg/2023JulSep/0070.html" }, { "category": "external", "summary": "https://www.mail-archive.com/haproxy%40formilux.org/msg43861.html", "url": "https://www.mail-archive.com/haproxy%40formilux.org/msg43861.html" } ], "release_date": "2023-11-28T20:15:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-04-16T12:37:17.199393Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1776343034", "product_ids": [ "Red-Hat-7:haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776343034" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "version": "3.1" }, "products": [ "Red-Hat-7:haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }