FKIE_CVE-2026-23738

Vulnerability from fkie_nvd - Published: 2026-02-06 17:16 - Updated: 2026-06-17 10:22
Severity
3.5 (Low) - CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, user supplied/control values for Cookies and any GET variable query Parameter are directly interpolated into the HTML of the page using ast_str_append. The endpoint at GET /httpstatus is the potential vulnerable endpoint relating to asterisk/main /http.c. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2.
References
security-advisories@github.comhttps://github.com/asterisk/asterisk/security/advisories/GHSA-v6hp-wh3r-cwxhVendor Advisory
Impacted products
Vendor Product Version
sangoma asterisk *
sangoma asterisk *
sangoma asterisk *
sangoma asterisk *
sangoma certified_asterisk *
sangoma certified_asterisk 20.7
sangoma certified_asterisk 20.7
sangoma certified_asterisk 20.7
sangoma certified_asterisk 20.7
sangoma certified_asterisk 20.7
sangoma certified_asterisk 20.7
sangoma certified_asterisk 20.7
sangoma certified_asterisk 20.7
sangoma certified_asterisk 20.7
sangoma certified_asterisk 20.7
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{
  "affected": [
    {
      "affectedData": [
        {
          "product": "asterisk",
          "vendor": "asterisk",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 23.2.2"
            },
            {
              "status": "affected",
              "version": "\u003c 22.8.2"
            },
            {
              "status": "affected",
              "version": "\u003c 21.12.1"
            },
            {
              "status": "affected",
              "version": "\u003c 20.18.2"
            },
            {
              "status": "affected",
              "version": "\u003c 20.7-cert9"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "55FE60C1-D6E7-40DE-A1E3-C37A8ED13BAA",
              "versionEndIncluding": "20.18.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "842D5FCD-E7A1-45AF-BC46-7C6CB03AE88E",
              "versionEndIncluding": "21.12.1",
              "versionStartIncluding": "21.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F12BA0F4-535F-409E-B2AB-84B703707055",
              "versionEndIncluding": "22.8.2",
              "versionStartIncluding": "22.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B036D768-9ADA-4965-A596-BEF60749C3CD",
              "versionEndExcluding": "23.2.2",
              "versionStartIncluding": "23.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "44460225-C50D-414A-A2E0-F8280E1C1E1D",
              "versionEndIncluding": "18.9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1:*:*:*:*:*:*",
              "matchCriteriaId": "79225576-AF7C-4099-9624-C53578A7417F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc1:*:*:*:*:*:*",
              "matchCriteriaId": "29323E6E-12C9-46C7-B29C-25E0CD537A8E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc2:*:*:*:*:*:*",
              "matchCriteriaId": "8E563972-78C0-40A0-83EA-6A3BA3D71946",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert2:*:*:*:*:*:*",
              "matchCriteriaId": "64209621-D458-432A-B0E3-C8D0B6698574",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert3:*:*:*:*:*:*",
              "matchCriteriaId": "B148158A-8354-41C2-A44C-2C0DAABAD217",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert4:*:*:*:*:*:*",
              "matchCriteriaId": "3D4D96E8-1F01-42B8-9181-67DEB12D9DD2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert5:*:*:*:*:*:*",
              "matchCriteriaId": "50D1B02A-F5F9-48EB-A396-412821F5D602",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert6:*:*:*:*:*:*",
              "matchCriteriaId": "4CBB2891-448F-4C4E-8A47-2283A8F71FE6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert7:*:*:*:*:*:*",
              "matchCriteriaId": "A9AF30E9-FC50-4A5C-BC99-9B3394488B9D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert8:*:*:*:*:*:*",
              "matchCriteriaId": "1A41366F-EA16-4867-A198-ACFFE5AFEA9A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, user supplied/control values for Cookies and any GET variable query Parameter are directly interpolated into the HTML of the page using ast_str_append. The endpoint at GET /httpstatus is the potential vulnerable endpoint relating to asterisk/main /http.c. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2."
    },
    {
      "lang": "es",
      "value": "Asterisk es una centralita privada y un kit de herramientas de telefon\u00eda de c\u00f3digo abierto. Antes de las versiones 20.7-cert9, 20.18.2, 21.12.1, 22.8.2 y 23.2.2, los valores proporcionados/controlados por el usuario para las Cookies y cualquier par\u00e1metro de consulta de variable GET se interpolan directamente en el HTML de la p\u00e1gina usando ast_str_append. El endpoint en GET /httpstatus es el endpoint potencialmente vulnerable relacionado con asterisk/main /http.c. Este problema ha sido parcheado en las versiones 20.7-cert9, 20.18.2, 21.12.1, 22.8.2 y 23.2.2."
    }
  ],
  "id": "CVE-2026-23738",
  "lastModified": "2026-06-17T10:22:01.440",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-23738",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-02-06T17:43:40.418371Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-02-06T17:16:26.000",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-v6hp-wh3r-cwxh"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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