RHSA-2026:54440

Vulnerability from csaf_redhat - Published: 2026-08-12 22:01 - Updated: 2026-08-12 22:04
Summary
Red Hat Security Advisory: Red Hat Lightspeed (formerly Insights) for Runtimes security update
Severity
Important
Notes
Topic: An update is now available for Red Hat Lightspeed (formerly Insights) for Runtimes on RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: An update is now available for Red Hat Lightspeed (formerly Insights) for Runtimes on RHEL 9. Security fix(es): * jackson-core: Denial of Service via incomplete fix in async JSON parser (CVE-2026-68494) * jackson-databind: @JsonIgnore bypass in Java Records (CVE-2026-59888) * jackson-databind: Denial of Service via deeply nested JSON processing (CVE-2026-50193) * jackson-databind: Arbitrary code execution via PolymorphicTypeValidator bypass (CVE-2026-54512) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

A flaw was found in jackson-databind, a general-purpose data-binding library for Jackson Data Processor. A remote attacker can exploit this vulnerability by sending deeply nested JSON (JavaScript Object Notation) data to a service that reads and processes it. This can lead to a Denial of Service (DoS) by consuming significant system resources, making the service unavailable to legitimate users.

CWE-1050 - Excessive Platform Resource Consumption within a Loop
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5281c5150f8c786098bbaf43d036ca89ed21cf2bf68f09236de82fda4740dd27_s390x
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5e413617445a6f5b238d5b45dae157df63c974b5a0262bce8754cdd3296f86a3_arm64
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a2dd47734aa704b52c3ff8c9101c8309ea5647abf5d0b6d5a4e38627270f3d61_ppc64le
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a6fc33e05610c80a5f2be7589394eaf9ea7e85568d001c601a214535df7e9a85_amd64
Vendor Fix fix
Workaround
Threats
Impact Important

A flaw was found in jackson-databind. This vulnerability allows a remote attacker to bypass the PolymorphicTypeValidator (PTV) when polymorphic typing is enabled and a type identifier contains generic parameters. By crafting a malicious type ID, an attacker can place a denied class as a generic type parameter of an allowed container. This leads to the loading and instantiation of arbitrary classes, potentially resulting in arbitrary code execution.

CWE-502 - Deserialization of Untrusted Data
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5281c5150f8c786098bbaf43d036ca89ed21cf2bf68f09236de82fda4740dd27_s390x
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5e413617445a6f5b238d5b45dae157df63c974b5a0262bce8754cdd3296f86a3_arm64
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a2dd47734aa704b52c3ff8c9101c8309ea5647abf5d0b6d5a4e38627270f3d61_ppc64le
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a6fc33e05610c80a5f2be7589394eaf9ea7e85568d001c601a214535df7e9a85_amd64
Vendor Fix fix
Workaround
Threats
Impact Important

A flaw was found in jackson-databind. When Java Records use a PropertyNamingStrategy, an attacker can bypass the @JsonIgnore annotation during deserialization. This allows a renamed JSON key to be assigned to a Record constructor parameter, even if it was intended to be ignored. Consequently, an untrusted client could set internal or privileged components from external input, potentially leading to unauthorized modification or disclosure of sensitive data.

CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5281c5150f8c786098bbaf43d036ca89ed21cf2bf68f09236de82fda4740dd27_s390x
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5e413617445a6f5b238d5b45dae157df63c974b5a0262bce8754cdd3296f86a3_arm64
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a2dd47734aa704b52c3ff8c9101c8309ea5647abf5d0b6d5a4e38627270f3d61_ppc64le
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a6fc33e05610c80a5f2be7589394eaf9ea7e85568d001c601a214535df7e9a85_amd64
Vendor Fix fix
Threats
Impact Moderate

A flaw was found in jackson-core. A remote attacker can exploit an incomplete fix in the non-blocking JSON parser by streaming specially crafted JSON data in small chunks. This bypasses the intended number length constraint, causing the parser to accumulate excessive memory per connection. This uncontrolled memory growth can lead to a denial of service (DoS) by exhausting the Java Virtual Machine (JVM) heap.

CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5281c5150f8c786098bbaf43d036ca89ed21cf2bf68f09236de82fda4740dd27_s390x
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5e413617445a6f5b238d5b45dae157df63c974b5a0262bce8754cdd3296f86a3_arm64
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a2dd47734aa704b52c3ff8c9101c8309ea5647abf5d0b6d5a4e38627270f3d61_ppc64le
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a6fc33e05610c80a5f2be7589394eaf9ea7e85568d001c601a214535df7e9a85_amd64
Vendor Fix fix
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:54440 self
https://access.redhat.com/security/cve/CVE-2026-50193 external
https://access.redhat.com/security/cve/CVE-2026-54512 external
https://access.redhat.com/security/cve/CVE-2026-59888 external
https://access.redhat.com/security/cve/CVE-2026-68494 external
https://access.redhat.com/security/updates/classi… external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-50193 self
https://bugzilla.redhat.com/show_bug.cgi?id=2491999 external
https://www.cve.org/CVERecord?id=CVE-2026-50193 external
https://nvd.nist.gov/vuln/detail/CVE-2026-50193 external
https://github.com/FasterXML/jackson-databind/com… external
https://github.com/FasterXML/jackson-databind/iss… external
https://github.com/FasterXML/jackson-databind/sec… external
https://access.redhat.com/security/cve/CVE-2026-54512 self
https://bugzilla.redhat.com/show_bug.cgi?id=2492015 external
https://www.cve.org/CVERecord?id=CVE-2026-54512 external
https://nvd.nist.gov/vuln/detail/CVE-2026-54512 external
https://github.com/FasterXML/jackson-databind/com… external
https://github.com/FasterXML/jackson-databind/iss… external
https://github.com/FasterXML/jackson-databind/sec… external
https://access.redhat.com/security/cve/CVE-2026-59888 self
https://bugzilla.redhat.com/show_bug.cgi?id=2500096 external
https://www.cve.org/CVERecord?id=CVE-2026-59888 external
https://nvd.nist.gov/vuln/detail/CVE-2026-59888 external
https://github.com/FasterXML/jackson-databind/com… external
https://github.com/FasterXML/jackson-databind/com… external
https://github.com/FasterXML/jackson-databind/pull/5974 external
https://github.com/FasterXML/jackson-databind/sec… external
https://access.redhat.com/security/cve/CVE-2026-68494 self
https://bugzilla.redhat.com/show_bug.cgi?id=2511026 external
https://www.cve.org/CVERecord?id=CVE-2026-68494 external
https://nvd.nist.gov/vuln/detail/CVE-2026-68494 external
https://github.com/FasterXML/jackson-core/commit/… external
https://github.com/FasterXML/jackson-core/commit/… external
https://github.com/FasterXML/jackson-core/commit/… external
https://github.com/FasterXML/jackson-core/pull/1611 external
https://github.com/FasterXML/jackson-core/securit… external
https://github.com/advisories/GHSA-72hv-8253-57qq external
https://www.cve.org/CVERecord?id=CVE-2026-18401 external

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          "url": "https://access.redhat.com/security/cve/CVE-2026-59888"
        },
        {
          "category": "external",
          "summary": "RHBZ#2500096",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2500096"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-59888",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-59888"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-59888",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59888"
        },
        {
          "category": "external",
          "summary": "https://github.com/FasterXML/jackson-databind/commit/baa2cdf5ca2b2717fbb88d91955d69d8651df3e4",
          "url": "https://github.com/FasterXML/jackson-databind/commit/baa2cdf5ca2b2717fbb88d91955d69d8651df3e4"
        },
        {
          "category": "external",
          "summary": "https://github.com/FasterXML/jackson-databind/commit/c7c678360624da5bc7eed2152789fa522880db9d",
          "url": "https://github.com/FasterXML/jackson-databind/commit/c7c678360624da5bc7eed2152789fa522880db9d"
        },
        {
          "category": "external",
          "summary": "https://github.com/FasterXML/jackson-databind/pull/5974",
          "url": "https://github.com/FasterXML/jackson-databind/pull/5974"
        },
        {
          "category": "external",
          "summary": "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-3pjw-73gf-8qr5",
          "url": "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-3pjw-73gf-8qr5"
        }
      ],
      "release_date": "2026-07-14T16:44:20.091000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-12T22:01:08+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
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            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5e413617445a6f5b238d5b45dae157df63c974b5a0262bce8754cdd3296f86a3_arm64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a2dd47734aa704b52c3ff8c9101c8309ea5647abf5d0b6d5a4e38627270f3d61_ppc64le",
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          "url": "https://access.redhat.com/errata/RHSA-2026:54440"
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
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            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5e413617445a6f5b238d5b45dae157df63c974b5a0262bce8754cdd3296f86a3_arm64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a2dd47734aa704b52c3ff8c9101c8309ea5647abf5d0b6d5a4e38627270f3d61_ppc64le",
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          ]
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "com.fasterxml.jackson.core/jackson-databind: tools.jackson.core/jackson-databind: jackson-databind: @JsonIgnore bypass in Java Records"
    },
    {
      "cve": "CVE-2026-68494",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2026-08-04T15:01:53.631865+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2511026"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in jackson-core. A remote attacker can exploit an incomplete fix in the non-blocking JSON parser by streaming specially crafted JSON data in small chunks. This bypasses the intended number length constraint, causing the parser to accumulate excessive memory per connection. This uncontrolled memory growth can lead to a denial of service (DoS) by exhausting the Java Virtual Machine (JVM) heap.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "com.fasterxml.jackson.core/jackson-core: tools.jackson.core/jackson-core: jackson-core: Denial of Service via incomplete fix in async JSON parser",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is an Important denial of service vulnerability in `jackson-core`\u0027s asynchronous JSON parser. A remote, unauthenticated attacker can exploit an incomplete fix to bypass number length constraints, leading to unbounded memory accumulation and potential JVM heap exhaustion in reactive frameworks processing chunked JSON input.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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          "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a2dd47734aa704b52c3ff8c9101c8309ea5647abf5d0b6d5a4e38627270f3d61_ppc64le",
          "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a6fc33e05610c80a5f2be7589394eaf9ea7e85568d001c601a214535df7e9a85_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-68494"
        },
        {
          "category": "external",
          "summary": "RHBZ#2511026",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511026"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-68494",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-68494"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-68494",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68494"
        },
        {
          "category": "external",
          "summary": "https://github.com/FasterXML/jackson-core/commit/050b429804dce2a7e08f0be1b0b4c3d040fdb9cd",
          "url": "https://github.com/FasterXML/jackson-core/commit/050b429804dce2a7e08f0be1b0b4c3d040fdb9cd"
        },
        {
          "category": "external",
          "summary": "https://github.com/FasterXML/jackson-core/commit/4cdd529749da396cc7edf6d4a2aad41d47902641",
          "url": "https://github.com/FasterXML/jackson-core/commit/4cdd529749da396cc7edf6d4a2aad41d47902641"
        },
        {
          "category": "external",
          "summary": "https://github.com/FasterXML/jackson-core/commit/c5941e5aae7fd5aeac55d66933cfb82b9aabeef8",
          "url": "https://github.com/FasterXML/jackson-core/commit/c5941e5aae7fd5aeac55d66933cfb82b9aabeef8"
        },
        {
          "category": "external",
          "summary": "https://github.com/FasterXML/jackson-core/pull/1611",
          "url": "https://github.com/FasterXML/jackson-core/pull/1611"
        },
        {
          "category": "external",
          "summary": "https://github.com/FasterXML/jackson-core/security/advisories/GHSA-r7wm-3cxj-wff9",
          "url": "https://github.com/FasterXML/jackson-core/security/advisories/GHSA-r7wm-3cxj-wff9"
        },
        {
          "category": "external",
          "summary": "https://github.com/advisories/GHSA-72hv-8253-57qq",
          "url": "https://github.com/advisories/GHSA-72hv-8253-57qq"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-18401",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-18401"
        }
      ],
      "release_date": "2026-08-04T14:39:14.471000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-12T22:01:08+00:00",
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            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5e413617445a6f5b238d5b45dae157df63c974b5a0262bce8754cdd3296f86a3_arm64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a2dd47734aa704b52c3ff8c9101c8309ea5647abf5d0b6d5a4e38627270f3d61_ppc64le",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a6fc33e05610c80a5f2be7589394eaf9ea7e85568d001c601a214535df7e9a85_amd64"
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          "restart_required": {
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          "url": "https://access.redhat.com/errata/RHSA-2026:54440"
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      "scores": [
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          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:5e413617445a6f5b238d5b45dae157df63c974b5a0262bce8754cdd3296f86a3_arm64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a2dd47734aa704b52c3ff8c9101c8309ea5647abf5d0b6d5a4e38627270f3d61_ppc64le",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1.0:registry.redhat.io/rh-lightspeed-runtimes/runtimes-agent-init-rhel9@sha256:a6fc33e05610c80a5f2be7589394eaf9ea7e85568d001c601a214535df7e9a85_amd64"
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
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      ],
      "title": "com.fasterxml.jackson.core/jackson-core: tools.jackson.core/jackson-core: jackson-core: Denial of Service via incomplete fix in async JSON parser"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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