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Highest advisory severityHigh 1 vendor · 1 advisory

CVE-2026-48044

CVE-2026-48044: 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.

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Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityHigh7.5

    High [CVE-2026-48044] Denial of Service via specially crafted zstd payload

    CVE-2026-48044Source published Source updated

    Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.23.0 until 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability has been identified in Envoy's zstd decompressor implementation (ZstdDecompressorImpl). When zstd decompression is enabled, processing a specially crafted, highly compressed zstd payload can lead to massive memory allocation. An attacker can exploit this to cause severe memory exhaustion, potentially resulting in an Out-Of-Memory (OOM) kill and Denial of Service (DoS) for the Envoy proxy. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1. This vulnerability in Envoy's zstd decompressor is rated as Important, as a remote, unauthenticated attacker can induce a denial of service. By sending a specially crafted zstd…

    Affected products in this advisory
    • Red Hat OpenShift Service Mesh 3.0
    • Red Hat OpenShift Service Mesh 3.1
    • Red Hat OpenShift Service Mesh 3.2
    • Red Hat OpenShift Service Mesh 3.3

    1 more entries in the full advisory.

    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • 1.35.11
    • 1.36.7
    • 1.37.3
    • 1.38.1

    8 more entries in the full advisory.

    Mitigation guidance
    • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
    Full advisory and evidenceOpen source bulletin

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