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    4 vulnerabilities found for body-parser by body-parser

    CVE-2026-12590 (GCVE-0-2026-12590)

    Vulnerability from nvd – Published: 2026-07-09 10:21 – Updated: 2026-07-09 12:06
    VLAI
    Title
    body-parser vulnerable to denial of service when invalid limit value silently disables size enforcement
    Summary
    Impact: In body-parser versions prior to 1.20.6 (1.x line) and 2.3.0 (2.x line), when the parser is configured with an invalid limit option value such as an unparseable string or NaN, bytes.parse returns null and the request body size check is silently skipped. Applications that rely on limit as their primary safeguard against oversized request bodies will accept arbitrarily large payloads, leading to excessive memory and CPU usage and denial of service. Patches: This issue is fixed in body-parser 1.20.6 and 2.3.0. After the fix, invalid limit values throw a clear error at parser construction time instead of silently disabling enforcement, while null and undefined continue to fall back to the default limit of 100kb. Workarounds: Validate the limit value before passing it to body-parser. For example, parse the value at startup and reject any configuration where the result is null or a non-finite number.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-770 - Allocation of Resources Without Limits or Throttling
    Assigner
    Impacted products
    Vendor Product Version
    body-parser body-parser Affected: 0 , < 1.20.6 (semver)
    Unaffected: 1.20.6 (semver)
    Affected: 2.0.0 , < 2.3.0 (semver)
    Unaffected: 2.3.0 (semver)
    Create a notification for this product.
    Credits
    Phillip9587 UlisesGascon bjohansebas
    Show details on NVD website

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    CVE-2025-13466 (GCVE-0-2025-13466)

    Vulnerability from nvd – Published: 2025-11-24 18:29 – Updated: 2025-11-24 18:57
    VLAI
    Title
    body-parser vulnerable to denial of service when url encoding is used
    Summary
    body-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic. This issue is addressed in version 2.2.1.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    References
    Impacted products
    Vendor Product Version
    body-parser body-parser Affected: 2.2.0 (semver)
    Create a notification for this product.
    Credits
    Phillip Barta Sebastian Beltran Ulises Gascón Chris de Almeida Jean Burellier
    Show details on NVD website

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    CVE-2026-12590 (GCVE-0-2026-12590)

    Vulnerability from cvelistv5 – Published: 2026-07-09 10:21 – Updated: 2026-07-09 12:06
    VLAI
    Title
    body-parser vulnerable to denial of service when invalid limit value silently disables size enforcement
    Summary
    Impact: In body-parser versions prior to 1.20.6 (1.x line) and 2.3.0 (2.x line), when the parser is configured with an invalid limit option value such as an unparseable string or NaN, bytes.parse returns null and the request body size check is silently skipped. Applications that rely on limit as their primary safeguard against oversized request bodies will accept arbitrarily large payloads, leading to excessive memory and CPU usage and denial of service. Patches: This issue is fixed in body-parser 1.20.6 and 2.3.0. After the fix, invalid limit values throw a clear error at parser construction time instead of silently disabling enforcement, while null and undefined continue to fall back to the default limit of 100kb. Workarounds: Validate the limit value before passing it to body-parser. For example, parse the value at startup and reject any configuration where the result is null or a non-finite number.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-770 - Allocation of Resources Without Limits or Throttling
    Assigner
    Impacted products
    Vendor Product Version
    body-parser body-parser Affected: 0 , < 1.20.6 (semver)
    Unaffected: 1.20.6 (semver)
    Affected: 2.0.0 , < 2.3.0 (semver)
    Unaffected: 2.3.0 (semver)
    Create a notification for this product.
    Credits
    Phillip9587 UlisesGascon bjohansebas
    Show details on NVD website

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    CVE-2025-13466 (GCVE-0-2025-13466)

    Vulnerability from cvelistv5 – Published: 2025-11-24 18:29 – Updated: 2025-11-24 18:57
    VLAI
    Title
    body-parser vulnerable to denial of service when url encoding is used
    Summary
    body-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic. This issue is addressed in version 2.2.1.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    References
    Impacted products
    Vendor Product Version
    body-parser body-parser Affected: 2.2.0 (semver)
    Create a notification for this product.
    Credits
    Phillip Barta Sebastian Beltran Ulises Gascón Chris de Almeida Jean Burellier
    Show details on NVD website

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              "type": "remediation reviewer",
              "value": "Chris de Almeida"
            },
            {
              "lang": "en",
              "type": "remediation reviewer",
              "value": "Jean Burellier"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003e\u003c/p\u003ebody-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic.\u003cbr\u003e\u003cp\u003eThis issue is addressed in version 2.2.1.\u003c/p\u003e"
                }
              ],
              "value": "body-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic.\nThis issue is addressed in version 2.2.1."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-469",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-469 HTTP DoS"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "YES",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "exploitMaturity": "PROOF_OF_CONCEPT",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "LOW",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:P/AU:Y",
                "version": "4.0",
                "vulnAvailabilityImpact": "LOW",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
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          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-400",
                  "description": "CWE-400 Uncontrolled Resource Consumption",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-11-24T18:29:36.725Z",
            "orgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
            "shortName": "openjs"
          },
          "references": [
            {
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://github.com/expressjs/body-parser/security/advisories/GHSA-wqch-xfxh-vrr4"
            }
          ],
          "source": {
            "advisory": "GHSA-wqch-xfxh-vrr4",
            "discovery": "INTERNAL"
          },
          "title": "body-parser vulnerable to denial of service when url encoding is used",
          "x_generator": {
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      "cveMetadata": {
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        "assignerShortName": "openjs",
        "cveId": "CVE-2025-13466",
        "datePublished": "2025-11-24T18:29:36.725Z",
        "dateReserved": "2025-11-20T02:16:16.283Z",
        "dateUpdated": "2025-11-24T18:57:00.939Z",
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