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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2026-67216

CVE-2026-67216: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.

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 severityMedium5.9

    Medium [CVE-2026-67216] Denial of Service due to inefficient JSON object comparison

    CVE-2026-67216Source published Source updated

    cJSON through 1.7.19 contains an inefficient algorithmic complexity flaw in cJSON_Compare(). When comparing objects, the function recurses into each shared subtree twice, once in each direction, with no depth guard, making the running time exponential in nesting depth. A small, deeply nested document of a few hundred bytes (depth around 40) compared for equality consumes hours of CPU, and the cost roughly doubles with each additional level of nesting. An application that calls cJSON_Compare() on attacker-influenced JSON that is structurally equal to a reference document is exposed to a denial-of-service condition. A flaw was found in cJSON. By providing specially crafted, deeply nested JSON (JavaScript Object Notation) objects for comparison, an attacker can consume excessive CPU…

    Affected products in this advisory
    • Red Hat Satellite 6
    Source-reported affected versions
    • 1.7.19
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    • Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.
    Full advisory and evidenceOpen source bulletin

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