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High 2 vendors · 2 advisories

CVE-2026-111822: Apache ActiveMQ, Apache ActiveMQ Runtime Config: ActiveMQ retains write access after live ACL revocation

CVE-2026-111822 key facts

CISA KEV
Not listed (catalogue checked )
Highest advisory rating
High
CVSS base score
4.3 (Red Hat)
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N · base score 8.1, scored by CISA-ADPAttack vector: network. Attack complexity: low. Privileges required: low. User interaction: none. Scope: unchanged. Confidentiality impact: high. Integrity impact: high. Availability impact: none.
Weakness
  • Improper invalidation of cached authorizations
CISA SSVC
Exploitation: none observed. Automatable: no. Technical impact: total. CISA, .
Fixed releases
  • Apache: 6.3.3, 5.19.12
  • Red Hat: 6.4.0, 6.3.3, 5.19.12
Vendor advisories
2 from Apache, Red Hat
Assigned by
apache (CNA)
CVE record published
Listed by VulniPulse
Record changed

Ratings, versions and fixes are quoted from the vendor advisories that cover only CVE-2026-111822; each belongs to its advisory, not to every product listed. How records are collected and checked.

Description

Improper invalidation of cached authorizations vulnerability in Apache ActiveMQ, Apache ActiveMQ Runtime Config. After the runtime configuration plugin removes a principal's write grant on a destination, an authenticated connection opened before the change can keep sending to that destination, including through a new anonymous producer, while fresh connections and new explicit producers are denied. This issue affects Apache ActiveMQ: from 6.0.0 before 6.3.3, before 5.19.12; Apache ActiveMQ Runtime Config: from 6.0.0 before 6.3.3, before 5.19.12. Users are recommended to upgrade to version 6.4.0, 6.3.3 or 5.19.12, which fixes the issue.

Text from the CVE.org record (apache).

How do I fix CVE-2026-111822?

Upgrade to a fixed release named by the vendor:

  • Apache: 6.3.3, 5.19.12
  • Red Hat: 6.4.0, 6.3.3, 5.19.12
  • Users are recommended to upgrade to version 6.4.0, 6.3.3 or 5.19.12, which fixes the issue. (Apache)
  • Upgrade to a version containing the upstream fix (ActiveMQ Runtime Config 5.19.12 / 6.3.3 / 6.4.0) when available. As a workaround, restart existing connections (or the broker) after revoking write grants so cached authorizations are dropped, and do not rely on runtime ACL revocation to constrain already-authenticated connections. (Red Hat)

Vendor advisories for CVE-2026-111822

Apache

1 advisory
  • Advisory severityHigh

    High [CVE-2026-111822] Apache ActiveMQ, Apache ActiveMQ Runtime Config: ActiveMQ retains write access after live ACL revocation

    CVE-2026-111822Source published Source updated

    Improper invalidation of cached authorizations vulnerability in Apache ActiveMQ, Apache ActiveMQ Runtime Config. After the runtime configuration plugin removes a principal's write grant on a destination, an authenticated connection opened before the change can keep sending to that destination, including through a new anonymous producer, while fresh connections and new explicit producers are denied. This issue affects Apache ActiveMQ: from 6.0.0 before 6.3.3, before 5.19.12; Apache ActiveMQ Runtime Config: from 6.0.0 before 6.3.3, before 5.19.12. Users are recommended to upgrade to version 6.4.0, 6.3.3 or 5.19.12, which fixes the issue.

    Affected products in this advisory
    • Apache ActiveMQ
    Source-reported affected versions
    • Apache ActiveMQ 6.0.0 before 6.3.3
    • Apache ActiveMQ before 5.19.12
    • Apache ActiveMQ Runtime Config 6.0.0 before 6.3.3
    • Apache ActiveMQ Runtime Config before 5.19.12
    Source-reported fixed versions
    • 6.3.3
    • 5.19.12
    Mitigation guidance
    • Users are recommended to upgrade to version 6.4.0, 6.3.3 or 5.19.12, which fixes the issue.
    Full advisory and evidenceOpen source bulletin

Red Hat

1 advisory
  • Advisory severityMedium4.3

    Medium [CVE-2026-111822] org.apache.activemq/activemq-runtime-config: Apache ActiveMQ: Authorization bypass via improper cache invalidation

    CVE-2026-111822Source published Source updated

    org.apache.activemq/activemq-runtime-config: Apache ActiveMQ: Authorization bypass via improper cache invalidation. Red Hat rates this moderate (CVSS 4.3). Weakness: CWE-613. Affected product named by the advisory: Red Hat Fuse 7.

    Related products — impact not confirmed
    • Red Hat Fuse 7
    Source-reported affected versions
    • < 6.0.0
    • < 6.3.3
    • < 5.19.12
    Source-reported fixed versions
    • 6.4.0
    • 6.3.3
    • 5.19.12
    Mitigation guidance
    • Upgrade to a version containing the upstream fix (ActiveMQ Runtime Config 5.19.12 / 6.3.3 / 6.4.0) when available. As a workaround, restart existing connections (or the broker) after revoking write grants so cached authorizations are dropped, and do not rely on runtime ACL revocation to constrain already-authenticated connections.
    Full advisory and evidenceOpen source bulletin

References

Timeline

  1. CVE record published
  2. First vendor advisory listed by VulniPulse
  3. CVE record last updated

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