DEBIAN-CVE-2026-18922

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Source

https://security-tracker.debian.org/tracker/CVE-2026-18922

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18922.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-18922

Upstream

CVE-2026-18922

Published

2026-09-07T15:17:31Z

Modified

2026-09-09T08:47:25Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

A flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated successful bind, regardless of which SASL mechanism completes that second bind. An attacker can send a SASL PLAIN bind as cn=Directory Manager with an incorrect password, then complete a SASL ANONYMOUS bind on the same connection, causing the server to grant Directory Manager authority without any valid credentials. A variant using a valid low-privileged account's own successful bind instead of an anonymous one is also possible.

References

https://security-tracker.debian.org/tracker/CVE-2026-18922

Affected packages

Debian:12 / 389-ds-base

Package

Name: 389-ds-base
Purl: pkg:deb/debian/389-ds-base?arch=source&distro=bookworm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.3.1+dfsg1-1

2.3.1+dfsg1-1+deb12u1

2.3.4+dfsg1-1

2.3.4+dfsg1-1.1

2.4.4+dfsg1-1

2.4.4+dfsg1-3

2.4.5+dfsg1-1

3.*

3.0.2+dfsg1-1

3.1.1+dfsg1-1

3.1.1+dfsg1-2

3.1.1+dfsg1-3

3.1.2+dfsg1-1

3.1.2+vendor1-1

3.1.2+vendor1-2

3.3.0-1

3.3.0-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18922.json"

Debian:13 / 389-ds-base