ChangeIntel IT change radar

Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-103547

OpenBSD · Vulnerability

CVSS 4.0 9.2 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-103547

Published

In ldapd in OpenBSD 7.8 before errata 057 and 7.9 before errata 021, delegated BSD authentication results are correlated only by the LDAP child process client file descriptor and LDAP message ID. After a connection closes, a later connection that reuses the same file descriptor and message ID can receive the earlier authentication result. A remote attacker who can reach ldapd can complete a Bind as another identity. A missing connection can also cause a NULL pointer dereference. (ldapd is not enabled by default.)

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-103547

Published

OpenBSD

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unknown",
                    "product": "OpenBSD",
                    "repo": "https://github.com/openbsd/src",
                    "vendor": "OpenBSD",
                    "versions": [
                        {
                            "lessThan": "errata 057",
                            "status": "affected",
                            "version": "7.8",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "errata 021",
                            "status": "affected",
                            "version": "7.9",
                            "versionType": "custom"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON