Apache Artemis, Apache ActiveMQ Artemis: Missing authentication on CORE protocol session reattachment
An unauthenticated remote attacker can craft a CORE protocol SESSION_REATTACH packet to steal an existing session and assume ongoing execution of the previously authenticated session. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users are recommended to upgrade to version 2.57.0, which fixes the issue.
CVE-2026-57967
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-57967
Apache Artemis
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Apache ActiveMQ Artemis
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Apache Software Foundation",
"product": "Apache Artemis",
"versions": [
{
"status": "affected",
"version": "2.50.0",
"versionType": "semver",
"lessThanOrEqual": "2.56.0"
}
],
"packageURL": "pkg:maven/org.apache.artemis/artemis-server",
"packageName": "org.apache.artemis:artemis-server",
"collectionURL": "https://repo.maven.apache.org/maven2",
"defaultStatus": "unaffected"
},
{
"vendor": "Apache Software Foundation",
"product": "Apache ActiveMQ Artemis",
"versions": [
{
"status": "affected",
"version": "1.0.0",
"versionType": "semver",
"lessThanOrEqual": "2.44.0"
}
],
"packageURL": "pkg:maven/org.apache.activemq/artemis-server",
"packageName": "org.apache.activemq:artemis-server",
"collectionURL": "https://repo.maven.apache.org/maven2",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-57967
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #16331 · Revision 1
- Added to Heist Feed
- Publisher date