{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Moderate" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "Copyright © Red Hat, Inc. All rights reserved.", "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 Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93493.json" } ], "title": "io.netty/netty-handler-ssl-ocsp: Netty: OCSP Validation Silently Skipped When a Response Omits the Optional nextUpdate Field", "tracking": { "current_release_date": "2026-09-18T11:46:37+00:00", "generator": { "date": "2026-09-18T11:46:37+00:00", "engine": { "name": "Red Hat SDEngine", "version": "5.3.21" } }, "id": "CVE-2026-93493", "initial_release_date": "2026-09-10T00:41:42+00:00", "revision_history": [ { "date": "2026-09-10T00:41:42+00:00", "number": "1", "summary": "Initial version" }, { "date": "2026-09-18T11:39:58+00:00", "number": "2", "summary": "Current version" }, { "date": "2026-09-18T11:46:37+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat build of Apache Camel for Spring Boot 4", "product": { "name": "Red Hat build of Apache Camel for Spring Boot 4", "product_id": "red_hat_build_of_apache_camel_for_spring_boot_4", "product_identification_helper": { "cpe": "cpe:/a:redhat:camel_spring_boot:4" } } } ], "category": "product_family", "name": "Red Hat build of Apache Camel for Spring Boot 4" }, { "category": "product_version", "name": "netty-handler-ssl-ocsp", "product": { "name": "netty-handler-ssl-ocsp", "product_id": "netty-handler-ssl-ocsp", "product_identification_helper": { "purl": "pkg:maven/io.netty/netty-handler-ssl-ocsp@4.1.136.Final-redhat-00001" } } } ], "category": "vendor", "name": "Red Hat" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "netty-handler-ssl-ocsp as a component of Red Hat build of Apache Camel for Spring Boot 4", "product_id": "red_hat_build_of_apache_camel_for_spring_boot_4:netty-handler-ssl-ocsp" }, "product_reference": "netty-handler-ssl-ocsp", "relates_to_product_reference": "red_hat_build_of_apache_camel_for_spring_boot_4" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-93493", "cwe": { "id": "CWE-299", "name": "Improper Check for Certificate Revocation" }, "discovery_date": "2026-09-10T00:41:42+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2536897" } ], "notes": [ { "category": "description", "text": "A flaw was found in Netty's `netty-handler-ssl-ocsp` component. A remote attacker can exploit this vulnerability by providing an Online Certificate Status Protocol (OCSP) response that omits the optional `nextUpdate` field. This omission causes the OCSP validation to be silently skipped, leading to applications proceeding with an unvalidated certificate. This can result in a bypass of security controls where certificate validation is expected.", "title": "Vulnerability description" }, { "category": "summary", "text": "io.netty/netty-handler-ssl-ocsp: Netty: OCSP Validation Silently Skipped When a Response Omits the Optional nextUpdate Field", "title": "Vulnerability summary" }, { "category": "other", "text": "This vulnerability is rated Moderate because it allows a remote attacker to bypass certificate validation in applications using Netty's OCSP validator. By providing a specially crafted OCSP response that omits the optional `nextUpdate` field, an attacker can cause the validation process to silently fail, leading to the acceptance of an unvalidated certificate. This issue primarily affects applications within the Red Hat build of Apache Camel that explicitly utilize the `OcspServerCertificateValidator` component, potentially compromising the integrity of TLS connections.", "title": "Statement" }, { "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": { "known_affected": [ "red_hat_build_of_apache_camel_for_spring_boot_4:netty-handler-ssl-ocsp" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-93493" }, { "category": "external", "summary": "RHBZ#2536897", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536897" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-93493", "url": "https://www.cve.org/CVERecord?id=CVE-2026-93493" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-93493", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93493" } ], "release_date": "2026-09-10T00:41:42+00:00", "remediations": [ { "category": "workaround", "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.", "product_ids": [ "red_hat_build_of_apache_camel_for_spring_boot_4:netty-handler-ssl-ocsp" ] }, { "category": "none_available", "details": "Fix deferred", "product_ids": [ "red_hat_build_of_apache_camel_for_spring_boot_4:netty-handler-ssl-ocsp" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1" }, "products": [ "red_hat_build_of_apache_camel_for_spring_boot_4:netty-handler-ssl-ocsp" ] } ], "threats": [ { "category": "impact", "details": "Moderate", "product_ids": [ "red_hat_build_of_apache_camel_for_spring_boot_4:netty-handler-ssl-ocsp" ] } ], "title": "io.netty/netty-handler-ssl-ocsp: Netty: OCSP Validation Silently Skipped When a Response Omits the Optional nextUpdate Field" } ] }