261 lines
11 KiB
JSON
261 lines
11 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-86344",
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"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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"state": "PUBLISHED",
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"assignerShortName": "redhat",
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"dateReserved": "2026-09-07T09:13:46.693Z",
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"datePublished": "2026-10-01T21:29:55.877Z",
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"dateUpdated": "2026-11-04T23:52:54.518Z"
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},
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"containers": {
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"cna": {
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"title": "389-ds-base: 389-ds-base: unauthenticated worker-thread-pool exhaustion via completed-operation-then-incomplete-pdu connection requeue",
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"metrics": [
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{
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"other": {
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"content": {
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"value": "Important",
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"namespace": "https://access.redhat.com/security/updates/classification/"
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},
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"type": "Red Hat severity rating"
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}
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},
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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},
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"format": "CVSS"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "A flaw was found in 389-ds-base. An unauthenticated remote attacker can send a complete LDAP operation followed by the first bytes of an incomplete LDAPMessage on the same connection, causing the server to hand that connection to a second worker thread before the first worker's result is flushed. The second worker blocks until nsslapd-ioblocktimeout while holding the connection mutex, preventing delivery of the completed operation's result. Repeating this across a small number of connections proportional to the configured worker-thread pool size exhausts the entire pool under default configuration, denying service to all clients (anonymous and authenticated, plaintext and TLS) for as long as the attacker maintains the connections."
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}
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],
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"affected": [
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{
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"vendor": "Red Hat",
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"product": "Red Hat Directory Server 11",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "389-ds-base",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:directory_server:11"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Directory Server 11",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "redhat-ds:11/389-ds-base",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:directory_server:11"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Directory Server 12",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "389-ds-base",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:directory_server:12"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Directory Server 12",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "redhat-ds:12/389-ds-base",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:directory_server:12"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Directory Server 13",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "389-ds-base",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:directory_server:13"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 10",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "389-ds-base",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:enterprise_linux:10"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 6",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "389-ds-base",
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"defaultStatus": "unknown",
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"cpes": [
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"cpe:/o:redhat:rhel_els:6"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 7",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "389-ds-base",
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"defaultStatus": "unknown",
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"cpes": [
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"cpe:/o:redhat:rhel_els:7"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 8",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "389-ds:1.4/389-ds-base",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:enterprise_linux:8"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 8",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "389-ds-base",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:enterprise_linux:8"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 9",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "389-ds-base",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:enterprise_linux:9"
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]
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}
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],
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"references": [
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{
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"url": "https://access.redhat.com/security/cve/CVE-2026-86344",
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"tags": [
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"vdb-entry",
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"x_refsource_REDHAT"
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]
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},
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2529329",
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"name": "RHBZ#2529329",
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"tags": [
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"issue-tracking",
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"x_refsource_REDHAT"
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]
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}
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],
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"datePublic": "2026-10-01T00:00:00.000Z",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-400",
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"description": "Uncontrolled Resource Consumption",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"x_redhatCweChain": "CWE-400: Uncontrolled Resource Consumption",
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"workarounds": [
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{
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"lang": "en",
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"value": "As an interim mitigation, administrators can limit the number of concurrent connections permitted per source IP address in front of the LDAP listener (for example via a firewall, load balancer, or a tool such as fail2ban), since exploitation requires several simultaneous connections from the same attacker. Upgrading to a fixed package remains the only complete resolution."
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}
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],
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"timeline": [
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{
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"lang": "en",
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"time": "2026-09-02T07:07:28.000Z",
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"value": "Reported to Red Hat."
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},
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{
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"lang": "en",
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"time": "2026-10-01T00:00:00.000Z",
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"value": "Made public."
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Red Hat would like to thank xclow3n for reporting this issue."
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}
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],
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"providerMetadata": {
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"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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"shortName": "redhat",
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"dateUpdated": "2026-11-04T23:52:54.518Z"
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},
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"x_generator": {
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"engine": "cvelib 1.8.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"type": "ssvc",
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"content": {
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"timestamp": "2026-10-02T18:22:37.897462Z",
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"id": "CVE-2026-86344",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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],
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"title": "CISA ADP Vulnrichment",
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}
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} |