FKIE_CVE-2026-1519
Vulnerability from fkie_nvd - Published: 2026-03-25 14:16 - Updated: 2026-07-20 12:17
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries (see: https://kb.isc.org/docs/why-does-my-authoritative-server-make-recursive-queries).
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.46, 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.46-S1, and 9.20.9-S1 through 9.20.20-S1.
References
{
"affected": [
{
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"product": "BIND 9",
"vendor": "ISC",
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"lessThanOrEqual": "9.16.50",
"status": "affected",
"version": "9.11.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.18.46",
"status": "affected",
"version": "9.18.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.20.20",
"status": "affected",
"version": "9.20.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.21.19",
"status": "affected",
"version": "9.21.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.16.50-S1",
"status": "affected",
"version": "9.11.3-S1",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.18.46-S1",
"status": "affected",
"version": "9.18.11-S1",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.20.20-S1",
"status": "affected",
"version": "9.20.9-S1",
"versionType": "custom"
}
]
}
],
"source": "security-officer@isc.org"
},
{
"affectedData": [
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"cpes": [
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],
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"packageName": "bind",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
"version": "32:9.18.33-10.el10_1.3",
"versionType": "rpm"
}
]
},
{
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"cpes": [
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],
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"packageName": "bind",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
"version": "32:9.18.33-4.el10_0.3",
"versionType": "rpm"
}
]
},
{
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],
"defaultStatus": "affected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION",
"vendor": "Red Hat",
"versions": [
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"status": "unaffected",
"version": "32:9.8.2-0.68.rc1.el6_10.18",
"versionType": "rpm"
}
]
},
{
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"cpe:/o:redhat:rhel_els:7"
],
"defaultStatus": "affected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "32:9.11.4-26.P2.el7_9.20",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8"
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"defaultStatus": "affected",
"packageName": "bind9.16",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
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{
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"status": "unaffected",
"version": "32:9.16.23-0.22.el8_10.5",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"defaultStatus": "affected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
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{
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"version": "32:9.11.36-16.el8_10.7",
"versionType": "rpm"
}
]
},
{
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"cpes": [
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],
"defaultStatus": "affected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
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"status": "unaffected",
"version": "32:9.11.26-4.el8_4.9",
"versionType": "rpm"
}
]
},
{
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"cpes": [
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"defaultStatus": "affected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
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"status": "unaffected",
"version": "32:9.11.26-4.el8_4.9",
"versionType": "rpm"
}
]
},
{
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"cpes": [
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],
"defaultStatus": "affected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
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"status": "unaffected",
"version": "32:9.11.36-3.el8_6.12",
"versionType": "rpm"
}
]
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{
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"cpes": [
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],
"defaultStatus": "affected",
"packageName": "bind9.16",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
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"status": "unaffected",
"version": "32:9.16.23-0.7.el8_6.10",
"versionType": "rpm"
}
]
},
{
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"cpes": [
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],
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"packageName": "bind9.16",
"product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
"versions": [
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"status": "unaffected",
"version": "32:9.16.23-0.7.el8_6.10",
"versionType": "rpm"
}
]
},
{
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"cpes": [
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],
"defaultStatus": "affected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
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"status": "unaffected",
"version": "32:9.11.36-3.el8_6.12",
"versionType": "rpm"
}
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},
{
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"cpes": [
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],
"defaultStatus": "affected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
"version": "32:9.11.36-3.el8_6.12",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.8"
],
"defaultStatus": "affected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
"version": "32:9.11.36-8.el8_8.9",
"versionType": "rpm"
}
]
},
{
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"cpes": [
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],
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"packageName": "bind9.16",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
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"status": "unaffected",
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"versionType": "rpm"
}
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},
{
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"cpes": [
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"packageName": "bind",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
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"status": "unaffected",
"version": "32:9.11.36-8.el8_8.9",
"versionType": "rpm"
}
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"packageName": "bind9.16",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"vendor": "Red Hat",
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"version": "32:9.16.23-0.14.el8_8.8",
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}
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"cpes": [
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"packageName": "bind9.18",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
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"status": "unaffected",
"version": "32:9.18.29-5.el9_7.4",
"versionType": "rpm"
}
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},
{
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"packageName": "bind",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
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"status": "unaffected",
"version": "32:9.16.23-34.el9_7.2",
"versionType": "rpm"
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{
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"packageName": "bind",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"vendor": "Red Hat",
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"packageName": "bind",
"product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
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"vendor": "Red Hat",
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"cpes": [
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"defaultStatus": "affected",
"packageName": "rhcos",
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"vendor": "Red Hat",
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"vendor": "Red Hat",
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"version": "4.19.9.6.202606241344-0",
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"defaultStatus": "affected",
"packageName": "bind-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
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{
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"cpes": [
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],
"defaultStatus": "unaffected",
"packageName": "dhcp",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
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{
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"cpes": [
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"defaultStatus": "unaffected",
"packageName": "openshift4/ose-kube-rbac-proxy-rhel9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
"matchCriteriaId": "9EC5B9B1-25F2-48CA-9E8A-59D8E81D408A",
"versionEndIncluding": "9.16.50",
"versionStartIncluding": "9.11.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
"matchCriteriaId": "4DC8EC77-8200-45EC-B006-73E48A67A1B8",
"versionEndExcluding": "9.18.47",
"versionStartIncluding": "9.18.0",
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{
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"matchCriteriaId": "2C0EF5D0-68A6-4E00-985B-523D9B243E49",
"versionEndExcluding": "9.20.21",
"versionStartIncluding": "9.20.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
"matchCriteriaId": "B1DD0950-5CBD-49B2-8007-5E96B3C4FB1B",
"versionEndExcluding": "9.21.20",
"versionStartIncluding": "9.21.0",
"vulnerable": true
}
],
"negate": false,
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]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries (see: https://kb.isc.org/docs/why-does-my-authoritative-server-make-recursive-queries).\nThis issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.46, 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.46-S1, and 9.20.9-S1 through 9.20.20-S1."
},
{
"lang": "es",
"value": "Si un resolvedor BIND est\u00e1 realizando validaci\u00f3n DNSSEC y encuentra una zona creada maliciosamente, el resolvedor puede consumir CPU excesiva. Los servidores solo autoritativos generalmente no se ven afectados, aunque hay circunstancias en las que los servidores autoritativos pueden realizar consultas recursivas (ver: https://kb.isc.org/docs/why-does-my-authoritative-server-make-recursive-queries).\nEste problema afecta a las versiones de BIND 9 9.11.0 a 9.16.50, 9.18.0 a 9.18.46, 9.20.0 a 9.20.20, 9.21.0 a 9.21.19, 9.11.3-S1 a 9.16.50-S1, 9.18.11-S1 a 9.18.46-S1, y 9.20.9-S1 a 9.20.20-S1."
}
],
"id": "CVE-2026-1519",
"lastModified": "2026-07-20T12:17:56.527",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"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"
},
"exploitabilityScore": 3.9,
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"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"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"type": "Secondary"
}
],
"ssvcV203": [
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"options": [
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{
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}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T14:55:33.427270Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-03-25T14:16:33.110",
"references": [
{
"source": "security-officer@isc.org",
"tags": [
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"url": "https://downloads.isc.org/isc/bind9/9.18.47"
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{
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"url": "https://downloads.isc.org/isc/bind9/9.21.20"
},
{
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"tags": [
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],
"url": "https://kb.isc.org/docs/cve-2026-1519"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00008.html"
},
{
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{
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:24934"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2026:25083"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2026:25171"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:25214"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:29110"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:29863"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:34048"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:36610"
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:6935"
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:7915"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:8075"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2026:8155"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:8312"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2026:8352"
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{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/security/cve/CVE-2026-1519"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451305"
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{
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"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1519.json"
}
],
"sourceIdentifier": "security-officer@isc.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-606"
}
],
"source": "security-officer@isc.org",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-770"
}
],
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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