CVE-2026-57967: Apache Artemis · Missing Authentication
Affects Apache ArtemisSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical · fixed in 2.57.0 : patch Apache Artemis as a priority.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 1.4% chance of exploitation in 30 days – higher than 73% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers can reliably automate steps 1–4 of the kill chain
- Technical impact
- Total control over the software or total information disclosure
CISA SSVC assessment, 2026-09-10.
- Patch
- Available – fixed in 2.57.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apache Software FoundationApache Artemis | Affected
| Fixed in– |
| Apache Software FoundationApache ActiveMQ Artemis | Affected
| Fixed in– |
MavenApache Software Foundation/org.apache.artemis:artemis-serverpkg:maven/Apache Software Foundation/org.apache.artemis:artemis-serverOther threats | Affected
| Fixed in– |
MavenApache Software Foundation/org.apache.activemq:artemis-serverpkg:maven/Apache Software Foundation/org.apache.activemq:artemis-serverOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
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.