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FKIE_CVE-2022-23548

Vulnerability from fkie_nvd - Published: 2023-01-05 19:15 - Updated: 2026-06-17 04:30
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, parsing posts can be susceptible to regular expression denial of service (ReDoS) attacks. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.
References
security-advisories@github.comhttps://github.com/discourse/discourse/pull/19737Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/discourse/discourse/security/advisories/GHSA-7rw2-f4x7-7pxfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/discourse/discourse/pull/19737Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/discourse/discourse/security/advisories/GHSA-7rw2-f4x7-7pxfThird Party Advisory
Impacted products
Vendor Product Version
discourse discourse *
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 2.9.0
discourse discourse 3.0.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "discourse",
          "vendor": "discourse",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.8.14"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.9.0.beta0, \u003c  2.9.0.beta16"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9C13BCBA-EF34-4F4B-9F4A-33392EB45196",
              "versionEndExcluding": "2.8.14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:2.9.0:beta1:*:*:*:*:*:*",
              "matchCriteriaId": "B3803EF9-A296-42B7-887F-93C5E68E94C4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:2.9.0:beta10:*:*:*:*:*:*",
              "matchCriteriaId": "35BAC488-3622-4B0B-B8EA-879E8C68E8CF",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "406A23B4-B971-4DC8-A132-EE9854FE8546",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "1DD3C47F-E49F-4E19-9EA7-A322C4CFD541",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "E924AC08-6978-4DFF-B616-9E3E9D6FBE1B",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "B5A3C7FB-B3B6-45F0-AD7D-062A50490AD7",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "8BA3D313-3C11-43E2-A47D-CBB532D1B6F8",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "6F42673E-65F3-4807-9484-20CB747420FB",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:2.9.0:beta4:*:*:*:*:*:*",
              "matchCriteriaId": "0B91D023-FCE5-4866-AD8B-BBB675763104",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:2.9.0:beta5:*:*:*:*:*:*",
              "matchCriteriaId": "0086484D-0164-449C-8AAE-BE7479CB9706",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:2.9.0:beta6:*:*:*:*:*:*",
              "matchCriteriaId": "F9D1B031-96C7-44C0-A0A0-F67ABE55C93C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:2.9.0:beta7:*:*:*:*:*:*",
              "matchCriteriaId": "750D2AD9-35E7-4AC7-9C22-AA90DAA34F3F",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "B68E308A-BDAB-4614-A563-4460F7996CBE",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:3.0.0:beta15:*:*:*:*:*:*",
              "matchCriteriaId": "F62275F8-11E9-4D94-8F2E-F83905F65031",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, parsing posts can be susceptible to regular expression denial of service (ReDoS) attacks. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds."
    },
    {
      "lang": "es",
      "value": "Discourse es una plataforma de discusi\u00f3n de fuentes de opciones. Antes de la versi\u00f3n 2.8.14 en la rama `stable` y la versi\u00f3n 2.9.0.beta16 en las ramas `beta` y `tests-passed`, el an\u00e1lisis de publicaciones puede ser susceptible a ataques de denegaci\u00f3n de servicio (ReDoS) de expresi\u00f3n regular. Este problema se solucion\u00f3 en las versiones 2.8.14 y 2.9.0.beta16. No se conocen workarounds."
    }
  ],
  "id": "CVE-2022-23548",
  "lastModified": "2026-06-17T04:30:20.130",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-23548",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-03-10T21:00:33.992880Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-01-05T19:15:09.423",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/discourse/discourse/pull/19737"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/discourse/discourse/security/advisories/GHSA-7rw2-f4x7-7pxf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/discourse/discourse/pull/19737"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/discourse/discourse/security/advisories/GHSA-7rw2-f4x7-7pxf"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1333"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1333"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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