{"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-2026-79771.json"}],"title":"nokogiri: Nokogiri: Denial of Service via XSLT transform memory leak","tracking":{"current_release_date":"2026-08-27T13:38:07+00:00","generator":{"date":"2026-08-27T13:38:07+00:00","engine":{"name":"Red Hat 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Attackers can exploit a memory leak in the XSLT Stylesheet transform method by providing specially crafted input containing null bytes. This can lead to excessive memory consumption and enable a denial of service against long-running processes.","title":"Vulnerability description"},{"category":"summary","text":"nokogiri: Nokogiri: Denial of Service via XSLT transform memory leak","title":"Vulnerability summary"},{"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_3scale_api_management_platform_2:3scale-amp2/backend-rhel8","red_hat_3scale_api_management_platform_2:3scale-amp2/system-rhel8","red_hat_3scale_api_management_platform_2:3scale-amp2/system-rhel9","red_hat_3scale_api_management_platform_2:3scale-amp2/toolbox-rhel9","red_hat_3scale_api_management_platform_2:3scale-amp2/zync-rhel9","red_hat_satellite_6:tfm-rubygem-amazing_print","red_hat_satellite_6:tfm-rubygem-amazing_print.src","red_hat_satellite_6:tfm-rubygem-graphql","red_hat_satellite_6:tfm-rubygem-graphql.src"]},"references":[{"category":"self","summary":"Canonical URL","url":"https://access.redhat.com/security/cve/CVE-2026-79771"},{"category":"external","summary":"RHBZ#2523571","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2523571"},{"category":"external","summary":"https://www.cve.org/CVERecord?id=CVE-2026-79771","url":"https://www.cve.org/CVERecord?id=CVE-2026-79771"},{"category":"external","summary":"https://nvd.nist.gov/vuln/detail/CVE-2026-79771","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-79771"},{"category":"external","summary":"https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-v2fc-qm4h-8hqv","url":"https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-v2fc-qm4h-8hqv"},{"category":"external","summary":"https://www.vulncheck.com/advisories/nokogiri-before-memory-leak-via-xslt-transform","url":"https://www.vulncheck.com/advisories/nokogiri-before-memory-leak-via-xslt-transform"}],"release_date":"2026-08-25T15:16:03.736000+00:00","remediations":[{"category":"no_fix_planned","details":"Out of support scope","product_ids":["red_hat_3scale_api_management_platform_2:3scale-amp2/backend-rhel8","red_hat_3scale_api_management_platform_2:3scale-amp2/zync-rhel9"]},{"category":"none_available","details":"Fix deferred","product_ids":["red_hat_3scale_api_management_platform_2:3scale-amp2/system-rhel8","red_hat_3scale_api_management_platform_2:3scale-amp2/system-rhel9","red_hat_3scale_api_management_platform_2:3scale-amp2/toolbox-rhel9","red_hat_satellite_6:tfm-rubygem-amazing_print","red_hat_satellite_6:tfm-rubygem-amazing_print.src","red_hat_satellite_6:tfm-rubygem-graphql","red_hat_satellite_6:tfm-rubygem-graphql.src"]}],"scores":[{"cvss_v3":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","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:L","version":"3.1"},"products":["red_hat_3scale_api_management_platform_2:3scale-amp2/backend-rhel8","red_hat_3scale_api_management_platform_2:3scale-amp2/system-rhel8","red_hat_3scale_api_management_platform_2:3scale-amp2/system-rhel9","red_hat_3scale_api_management_platform_2:3scale-amp2/toolbox-rhel9","red_hat_3scale_api_management_platform_2:3scale-amp2/zync-rhel9","red_hat_satellite_6:tfm-rubygem-amazing_print","red_hat_satellite_6:tfm-rubygem-amazing_print.src","red_hat_satellite_6:tfm-rubygem-graphql","red_hat_satellite_6:tfm-rubygem-graphql.src"]}],"threats":[{"category":"impact","details":"Moderate","product_ids":["red_hat_3scale_api_management_platform_2:3scale-amp2/backend-rhel8","red_hat_3scale_api_management_platform_2:3scale-amp2/system-rhel8","red_hat_3scale_api_management_platform_2:3scale-amp2/system-rhel9","red_hat_3scale_api_management_platform_2:3scale-amp2/toolbox-rhel9","red_hat_3scale_api_management_platform_2:3scale-amp2/zync-rhel9","red_hat_satellite_6:tfm-rubygem-amazing_print","red_hat_satellite_6:tfm-rubygem-amazing_print.src","red_hat_satellite_6:tfm-rubygem-graphql","red_hat_satellite_6:tfm-rubygem-graphql.src"]}],"title":"nokogiri: Nokogiri: Denial of Service via XSLT transform memory leak"}]}