All vulnerabilities
CVE-2026-104733

User Impersonation/Authorization Bypass in XMPP Server ejabberd

ProcessOne ejabberd
Open in ThreatlineRecord JSON
CVSS
7.4High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.21%Chance of exploitation activity in the next 30 days, higher than 11% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published2 Oct 2026Updated 2 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

User Impersonation in ProcessOnes XMMP Server ejabberd <= 26.04 allows an attacker to impersonate arbitrary users via unvalidated authzid parameter in SASL-PLAIN mechanism.

Text from CVE List

Affected versions 1

  • ejabberdaffected: all versions through 26.04CVE List

References 2