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Highest advisory severityHigh 1 vendor · 1 advisory

CVE-2026-73633

CVE-2026-73633: 1 tracked advisory record across Apache. 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

Apache

1 advisory
  • Advisory severityHigh7.5

    High [CVE-2026-73633] Uncontrolled resource consumption vulnerability in the JSON plugin of Apache Struts

    CVE-2026-73633Source published Source updated

    Uncontrolled resource consumption vulnerability in the JSON plugin of Apache Struts. When an application is configured to populate actions from a JSON request body, the plugin reads that body into memory without bounding how much it will accept, so a single request can exhaust the heap and deny service to other users. The plugin's configurable JSON input length limit does not bound this read. The JSON plugin is an optional component; applications that do not use it, or use it without enabling JSON request-body handling, are not affected. This issue affects Apache Struts: from 2.1.8 through 2.3.37, from 2.5.0 through 2.5.33, from 6.0.0 through 6.10.0, from 7.0.0 through 7.2.1. Users are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.

    Affected products in this advisory
    • Apache Struts
    Source-reported affected versions
    • 2.1.8 through 2.3.37
    • 2.5.0 through 2.5.33
    • 6.0.0 through 6.10.0
    • 7.0.0 through 7.2.1.

    1 more entries in the full advisory.

    Source-reported fixed versions
    • 6.11.0
    • 7.3.0
    Mitigation guidance
    • The plugin's configurable JSON input length limit does not bound this read.
    • Users are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.
    Full advisory and evidenceOpen source bulletin

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