Apache Qpid Broker-J: Type size/count handling can lead to excessive allocation pre-authentication in the AMQP 0-10 decoder

published 2026-09-25 45 d ago modified 2026-10-05 34 d ago also EUVD-2026-86586

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits: 0; none known

A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service.

This issue affects Apache Qpid Broker-J: through 10.1.0.

Users are recommended to upgrade to version 10.1.1, which fixes the issue.

Patch / fix

fixed in 1

apache qpid_broker-j 10.1.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-92560 updated 2026-10-02 cvss 7.5

org.apache.qpid/qpid-broker-plugins-amqp-0-10-protocol: Apache Qpid Broker-J: Denial of Service via excessive memory allocation in AMQP 0-10 decoder

Red Hat Fuse 7 qpid-broker-plugins-amqp-0-10-protocol 6.1.2
not affected: component not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 44 d ago (2026-09-25)

Exploit prediction

0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Apache Software Foundation Apache Qpid Broker-J

Classification

Weakness

CWE-770 Allocation of Resources Without Limits or Throttling

References

lists.apache.org /thread/dcsjw242n1bxdog29hwlg43r5611dtb7
vendor-advisory, mailing-list
openwall.com /lists/oss-security/2026/09/24/13
mailing-list, third-party-advisory

Sources

CVE List CVE-2026-92560
NVD CVE-2026-92560

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary