FKIE_CVE-2021-29476

Vulnerability from fkie_nvd - Published: 2021-04-27 21:15 - Updated: 2026-06-17 03:47
Severity
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Requests is a HTTP library written in PHP. Requests mishandles deserialization in FilteredIterator. The issue has been patched and users of `Requests` 1.6.0, 1.6.1 and 1.7.0 should update to version 1.8.0.
References
security-advisories@github.comhttps://github.com/WordPress/Requests/security/advisories/GHSA-52qp-jpq7-6c54Third Party Advisory
security-advisories@github.comhttps://github.com/rmccue/Requests/pull/421Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/WordPress/Requests/security/advisories/GHSA-52qp-jpq7-6c54Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/rmccue/Requests/pull/421Patch, Third Party Advisory
Impacted products
Vendor Product Version
wordpress requests 1.6.0
wordpress requests 1.6.1
wordpress requests 1.7.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Requests",
          "vendor": "WordPress",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.6.0, \u003c 1.8.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wordpress:requests:1.6.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "3145DE0F-A194-4E09-8CEB-3AE04D360E29",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:wordpress:requests:1.6.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "8C81C02F-FB0E-4977-A4BA-441A2652FBEC",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:wordpress:requests:1.7.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "9C38CDEB-A420-4419-A538-92B86A51B501",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Requests is a HTTP library written in PHP. Requests mishandles deserialization in FilteredIterator. The issue has been patched and users of `Requests` 1.6.0, 1.6.1 and 1.7.0 should update to version 1.8.0."
    },
    {
      "lang": "es",
      "value": "Requests es una biblioteca HTTP escrita en PHP.\u0026#xa0;Las peticiones manejan inapropiadamente una deserializaci\u00f3n en FilteredIterator.\u0026#xa0;El problema ha sido parcheado y usuarios de \"Requests\" versiones 1.6.0, 1.6.1 y 1.7.0 deber\u00edan actualizar a versi\u00f3n 1.8.0"
    }
  ],
  "id": "CVE-2021-29476",
  "lastModified": "2026-06-17T03:47:43.223",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-04-27T21:15:08.107",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/WordPress/Requests/security/advisories/GHSA-52qp-jpq7-6c54"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/rmccue/Requests/pull/421"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/WordPress/Requests/security/advisories/GHSA-52qp-jpq7-6c54"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/rmccue/Requests/pull/421"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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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

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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.


Detection rules are retrieved from Rulezet.


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