{"vulnerability": "CVE-2026-18355", "sightings": [{"uuid": "8aa1cad7-8e9f-4351-bcd3-62339004b4bd", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18355", "type": "seen", "source": "https://infosec.exchange/users/vuldb/statuses/117230305202564673", "content": "We have just added an important vulnerability affecting Red Hat Directory Server and Enterprise Linux (CVE-2026-18355) https://vuldb.com/vuln/399605", "creation_timestamp": "2026-09-07T14:48:21.009089Z"}, {"uuid": "54191461-206a-4a9b-bdb5-a4a484ee4c79", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18355", "type": "seen", "source": "https://infosec.exchange/users/offseq/statuses/117233891642545152", "content": "CRITICAL vulnerabilities in Red Hat 389-ds-base (>=9.4 <9.4.5) incl. heap overflow (CVE-2026-18355), privilege escalation, and ACI bypass. Patch ASAP via RHSA-2026:64781. Details: https://radar.offseq.com/threat/red-hat-security-advisory-389-ds-base-security-bug-fix-and-enhancement-update-c933f76430be2c96 #OffSeq #RedHat #LDAP #Vuln #SysAdmin", "creation_timestamp": "2026-09-08T06:00:24.299142Z"}, {"uuid": "d4eb7cf9-5909-401c-94cc-46e49c2c8d18", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18355", "type": "seen", "source": "https://infosec.exchange/users/offseq/statuses/117234245668128550", "content": "Red Hat 389-ds-base faces CRITICAL flaws (CVE-2026-18355 & more): heap buffer overflow, pre-auth NULL dereference, privilege escalation, and ACI bypass in RHEL 9.2 (<9.2.4). Patch ASAP. https://radar.offseq.com/threat/red-hat-security-advisory-389-ds-base-security-bug-fix-and-enhancement-update-0c583247a0fb050c #OffSeq #RedHat #CVE #LDAP", "creation_timestamp": "2026-09-08T07:30:26.320979Z"}]}