CVE-2026-60005

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When the slice\u00a0directive and unnamed regex captures are configured or when a background cache update happens, unauthenticated attackers can send requests that may cause uninitialized memory access in the NGINX worker process, leading to limited disclosure of memory or a restart.\n\nImpact:\nThis vulnerability may allow remote, unauthenticated attackers to have limited control to disclose memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only.\nNote: The ngx_http_slice_module\u00a0module is not enabled by default; it's enabled with the --with-http_slice_module\u00a0configuration parameter.\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>NGINX Plus and NGINX Open Source have a vulnerability in the <strong>ngx_http_slice_module </strong>module. 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When the slice\u00a0directive and unnamed regex captures are configured or when a background cache update happens, unauthenticated attackers can send requests that may cause uninitialized memory access in the NGINX worker process, leading to limited disclosure of memory or a restart.\n\nImpact:\nThis vulnerability may allow remote, unauthenticated attackers to have limited control to disclose memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only.\nNote: The ngx_http_slice_module\u00a0module is not enabled by default; it's enabled with the --with-http_slice_module\u00a0configuration parameter.\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.", "supportingMedia": [{"type": "text/html", "value": "<p>NGINX Plus and NGINX Open Source have a vulnerability in the <strong>ngx_http_slice_module </strong>module. 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There is no control plane exposure; this is a data plane issue only.<br><p><strong>Note</strong>: The <strong>ngx_http_slice_module</strong>&nbsp;module is not enabled by default; it's enabled with the <strong>--with-http_slice_module</strong>&nbsp;configuration parameter.</p><span style=\"background-color: rgb(255, 255, 255);\">Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.</span>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-908", "description": "CWE-908 Use of Uninitialized Resource"}]}], "providerMetadata": {"orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "shortName": "f5", "dateUpdated": "2026-07-15T15:04:21.040Z"}}}, "cveMetadata": {"cveId": "CVE-2026-60005", "state": "PUBLISHED", "dateUpdated": "2026-07-15T15:41:06.279Z", "dateReserved": "2026-07-08T15:49:43.059Z", "assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "datePublished": "2026-07-15T15:04:21.040Z", "assignerShortName": "f5"}, "dataVersion": "5.2"}

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When the slice\u00a0directive and unnamed regex captures are configured or when a background cache update happens, unauthenticated attackers can send requests that may cause uninitialized memory access in the NGINX worker process, leading to limited disclosure of memory or a restart.\n\nImpact:\nThis vulnerability may allow remote, unauthenticated attackers to have limited control to disclose memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only.\nNote: The ngx_http_slice_module\u00a0module is not enabled by default; it's enabled with the --with-http_slice_module\u00a0configuration parameter.\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}], "id": "CVE-2026-60005", "lastModified": "2026-08-11T15:09:03.683", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "f5sirt@f5.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "f5sirt@f5.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-60005", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-15T15:40:48.346021Z", "version": "2.0.3"}}]}, "published": "2026-07-15T16:16:49.820", "references": [{"source": "f5sirt@f5.com", "tags": ["Vendor Advisory"], "url": "https://my.f5.com/manage/s/article/K000162100"}], "sourceIdentifier": "f5sirt@f5.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "f5sirt@f5.com", "type": "Primary"}]}

{"bugzilla": {"description": "nginx: NGINX: Memory disclosure and denial of service in ngx_http_slice_module", "id": "2500992", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2500992"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.2", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "status": "draft"}, "cwe": "CWE-824", "details": ["A vulnerability in the NGINX ngx_http_slice_module allows remote, unauthenticated attackers to access uninitialized memory via crafted requests. If configured with unnamed regex captures or background cache updates, this flaw can result in limited memory disclosure or a denial-of-service crash."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, disable the ngx_http_slice_module entirely if it is not required.\nIf the module must be used, avoid unnamed regex captures with the slice directive and explicitly disable proxy_cache_background_update.\nReload or restart the NGINX service to apply these changes. Please note this may cause a brief service interruption."}, "name": "CVE-2026-60005", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "nginx", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "nginx:1.24/nginx", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "nginx", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "nginx:1.24/nginx", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "nginx:1.26/nginx", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "impact": "important", "package_name": "nginx", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "impact": "important", "package_name": "php", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:insights_proxy:1", "fix_state": "Affected", "package_name": "insights-proxy/insights-proxy-container-rhel9", "product_name": "Red Hat Lightspeed proxy 1"}], "public_date": "2026-07-15T15:04:21Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-60005\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-60005\nhttps://my.f5.com/manage/s/article/K000162100"], "statement": "Important: This vulnerability in NGINX's `ngx_http_slice_module` could lead to memory disclosure or denial of service. The impact on Red Hat products is reduced because the `ngx_http_slice_module` is not enabled by default. Exploitation requires explicit configuration of the module with the `slice` directive and unnamed regex captures, or during a background cache update, limiting exposure in typical deployments.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.31.2,1.31.3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.15.8,1.30.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "NGINX Open Source", "source": "cna", "vendor": "F5"}, "product": "nginx_open_source", "vendor": "f5"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[37.0.0.1,37.0.3.1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[R36,R36 P7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[R33,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "NGINX Plus", "source": "cna", "vendor": "F5"}, "product": "nginx_plus", "vendor": "f5"}], "created": "2026-07-15T19:15:14.686685+00:00", "updated": "2026-08-04T07:15:03.932088+00:00", "vendors": ["f5", "f5$PRODUCT$nginx_open_source", "f5$PRODUCT$nginx_plus"]}