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High 2 vendors · 2 advisories

CVE-2026-105042: Apache Qpid Proton C: Unbounded recursion in parsing AMQP message bodies can lead to crash

CVE-2026-105042 key facts

CISA KEV
Not listed (catalogue checked )
Highest advisory rating
High
CVSS base score
7.5 (Red Hat)
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · base score 9.8, scored by CISA-ADPAttack vector: network. Attack complexity: low. Privileges required: none. User interaction: none. Scope: unchanged. Confidentiality impact: high. Integrity impact: high. Availability impact: high.
Weakness
  • CWE-674 Uncontrolled Recursion
CISA SSVC
Exploitation: none observed. Automatable: yes. Technical impact: total. CISA, .
Fixed releases
  • Apache: 0.41.1
  • Red Hat: 0.41.1
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-2026-105042; each belongs to its advisory, not to every product listed. How records are collected and checked.

Description

A message body that is deeply nested and decoded by pn_message_body() could overflow the stack and cause a crash. This issue affects Apache Qpid Proton C: through 0.40.0. Users are recommended to upgrade to version 0.41.1, which fixes the issue.

Text from the CVE.org record (apache).

How do I fix CVE-2026-105042?

Upgrade to a fixed release named by the vendor:

  • Apache: 0.41.1
  • Red Hat: 0.41.1
  • Users are recommended to upgrade to version 0.41.1, which fixes the issue. (Apache)

Vendor advisories for CVE-2026-105042

Apache

1 advisory

Red Hat

1 advisory
  • Advisory severityHigh7.5

    High [CVE-2026-105042] Denial of Service via stack overflow in pn_message_body

    CVE-2026-105042Source published Source updated

    Denial of Service via stack overflow in pn_message_body(). Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected products named by the advisory: Red Hat AMQ Clients; Red Hat OpenShift Container Platform 4; Red Hat OpenStack Platform 13 (Queens); Red Hat OpenStack Platform 16.2; and 2 more.

    Related products — impact not confirmed
    • Red Hat AMQ Clients
    • Red Hat OpenShift Container Platform 4
    • Red Hat OpenStack Platform 13 (Queens)
    • Red Hat OpenStack Platform 16.2

    2 more entries in the full advisory.

    Source-reported affected versions
    • 0.40.0
    Source-reported fixed versions
    • 0.41.1
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    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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