{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-15722", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-07-14T12:55:19.649Z", "datePublished": "2026-07-31T09:18:50.308Z", "dateUpdated": "2026-08-18T14:14:22.189Z" }, "containers": { "cna": { "title": "389-ds-base: 389-ds-base: pre-authentication stack buffer overflow in get_ruvelement_from_berval() via unbounded replica id parsing", "metrics": [ { "other": { "content": { "value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "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" }, "format": "CVSS" } ], "descriptions": [ { "lang": "en", "value": "A stack buffer overflow flaw was found in 389 Directory Server (389-ds-base). The get_ruvelement_from_berval() function in repl5_ruv.c copies digit characters from a network-supplied RUV berval into a fixed 16-byte stack buffer without bounds checking. A remote unauthenticated attacker can crash the LDAP server by sending a crafted StartNSDS50ReplicationRequest extended operation containing a replica ID field with more than 16 digit characters. The overflow occurs during payload decoding, before any authorization check. Stack protectors limit impact to denial of service." } ], "affected": [ { "vendor": "Red Hat", "product": "Red Hat Directory Server 11.7 E4S for RHEL 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "redhat-ds:11", "defaultStatus": "affected", "versions": [ { "version": "8080020260806114250.f969626e", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:directory_server_e4s:11.7::el8" ] }, { "vendor": "Red Hat", "product": "Red Hat Directory Server 11.9 for RHEL 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "redhat-ds:11", "defaultStatus": "affected", "versions": [ { "version": "8100020260803140625.37ed7c03", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:directory_server:11.9::el8" ] }, { "vendor": "Red Hat", "product": "Red Hat Directory Server 12.2 E4S for RHEL 9", "collectionURL": 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"https://access.redhat.com/downloads/content/package-browser/", "packageName": "389-ds:1.4", "defaultStatus": "affected", "versions": [ { "version": "8100020260806150504.25e700aa", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:enterprise_linux:8::appstream" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "389-ds:1.4", "defaultStatus": "affected", "versions": [ { "version": "8040020260803141511.96015a92", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": 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"packageName": "redhat-ds:12/389-ds-base", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:directory_server:12" ] }, { "vendor": "Red Hat", "product": "Red Hat Directory Server 13", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "389-ds-base", "defaultStatus": "unaffected", "cpes": [ "cpe:/a:redhat:directory_server:13" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "389-ds-base", "defaultStatus": "unknown", "cpes": [ "cpe:/o:redhat:enterprise_linux:6" ] } ], "references": [ { "url": "https://access.redhat.com/errata/RHSA-2026:55421", "name": "RHSA-2026:55421", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:55422", "name": "RHSA-2026:55422", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:55423", "name": "RHSA-2026:55423", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:55424", "name": "RHSA-2026:55424", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:55425", "name": "RHSA-2026:55425", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:55426", "name": "RHSA-2026:55426", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:55530", "name": "RHSA-2026:55530", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:55532", "name": "RHSA-2026:55532", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:55756", "name": "RHSA-2026:55756", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:55757", 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"tags": [ "issue-tracking", "x_refsource_REDHAT" ] } ], "datePublic": "2026-07-31T09:00:00.000Z", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-121", "description": "Stack-based Buffer Overflow", "lang": "en", "type": "CWE" } ] } ], "x_redhatCweChain": "CWE-121: Stack-based Buffer Overflow", "workarounds": [ { "lang": "en", "value": "Disable anonymous access by setting nsslapd-allow-anonymous-access to 'off' or 'rootdse' in cn=config. Alternatively, restrict network access to the LDAP port to trusted replication partners only using firewall rules." } ], "timeline": [ { "lang": "en", "time": "2026-04-01T00:00:00.000Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-07-31T09:00:00.000Z", "value": "Made public." } ], "credits": [ { "lang": "en", "value": "Red Hat would like to thank Sebastián Alba Vives for reporting this issue." } ], "providerMetadata": { "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-08-18T14:14:22.189Z" }, "x_generator": { "engine": "cvelib 1.8.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-07-31T10:41:52.360035Z", "id": "CVE-2026-15722", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-31T10:44:58.315Z" } } ] } }