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    CVE-2026-68981

    Apache NiFi 1.5.0 through 2.10.0 support gzip-encoded HTTP requests for the application REST API using a Jersey encoding filter. The framework enforced a configurable maximum request size on the compressed payload rather than the decompressed output, allowing a malicious client to send crafted requests that could consume excessive amounts of memory. Upgrading to Apache NiFi 2.11.0 is the recommended mitigation, which relocates response compression to Jetty Server and disables decompression of gzip-encoded HTTP requests.

    Published:Aug 3, 2026
    Last Modified:Aug 4, 2026
    EPS:Aug 3, 2026
    EPSS Score:0.00318
    CVSS Score:8.8

    Affected Products

    Vendor
    Apache
    Product
    Nifi

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-44911 (CVSS 2.3) — Authorization handling for component configuration verification requests in Apache NiFi 1.15.0 through 2.9.0 a…
    CVE-2026-44913 (CVSS 5.2) — Improper escaping of database table names in the CaptureChangeMySQL Processor included with Apache NiFi 1.2.0 …
    CVE-2026-54665 (CVSS 6.3) — Apache NiFi 0.0.1 through 2.9.0 support building qualified URLs from one of several HTTP request headers that …
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High