CVE-2026-77403
CVE-2026-77403: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.5
High [CVE-2026-77403] RabbitMQ amqp091-go: Denial of Service via AMQP frame size negotiation
CVE-2026-77403Source published Source updated
RabbitMQ amqp091-go: Denial of Service via AMQP frame size negotiation. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-839. Red Hat lists fixing advisory RHSA-2026:68290 with package opentelemetry-collector-contrib-main-0.161.0-0.1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Cryostat 4; Custom Metric Autoscaler operator for Red Hat Openshift; Multicluster Global Hub; and 4 more.
- Related products — impact not confirmed
- Red Hat Hardened Images
- Cryostat 4
- Custom Metric Autoscaler operator for Red Hat Openshift
- Multicluster Global Hub
4 more entries in the full advisory.
- Source-reported affected versions
- < 1.13.0
- Source-reported fixed versions
- opentelemetry-collector-contrib-main-0.161.0-0.1.hum1
- RHSA-2026:68290
- Mitigation guidance
- To mitigate this issue, ensure that applications using the RabbitMQ amqp091-go client only connect to trusted AMQP brokers. Restrict network access for clients to only communicate with known, secure broker instances. This reduces the risk of a malicious or compromised broker exploiting the client's vulnerability during frame size negotiation.
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