CVE-2026-47895 (GCVE-0-2026-47895)

Vulnerability from cvelistv5 – Published: 2026-08-22 00:00 – Updated: 2026-08-23 01:52
VLAI
Summary
In strongSwan before 6.0.7, identity parsing/cloning is mishandled. Parsed EAP-Identities that result in an empty but non-NULL encoding are not correctly cloned and trigger a double-free once the duplicates are destroyed.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
strongSwan strongSwan Affected: 4.3.3 , < 6.0.7 (semver)
    cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "strongSwan",
          "vendor": "strongSwan",
          "versions": [
            {
              "lessThan": "6.0.7",
              "status": "affected",
              "version": "4.3.3",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.7",
                  "versionStartIncluding": "4.3.3",
                  "vulnerable": true
                }
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              "negate": false,
              "operator": "OR"
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      ],
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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      "problemTypes": [
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            {
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              "description": "CWE-415 Double Free",
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            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-23T01:52:41.416Z",
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        },
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        }
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  "cveMetadata": {
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    "assignerShortName": "mitre",
    "cveId": "CVE-2026-47895",
    "datePublished": "2026-08-22T00:00:00.000Z",
    "dateReserved": "2026-05-20T00:00:00.000Z",
    "dateUpdated": "2026-08-23T01:52:41.416Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-08-23",
      "epss": "0.00447",
      "percentile": "0.37405"
    },
    "microsoft_vex": {
      "current_release_date": "2026-08-24T01:02:40.000Z",
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      "id": "msrc_CVE-2026-47895",
      "initial_release_date": "2026-08-24T01:02:40.000Z",
      "product_status:under_investigation": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "In strongSwan before 6.0.7, identity parsing/cloning is mishandled. Parsed EAP-Identities that result in an empty but non-NULL encoding are not correctly cloned and trigger a double-free once the duplicates are destroyed.",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-47895.json",
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    },
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    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-23T16:42:16Z",
      "cve": "CVE-2026-47895",
      "id": "CVE-2026-47895",
      "initial_release_date": "2026-06-10T02:25:28Z",
      "product_status:known_affected": "102",
      "product_status:recommended": "108",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-47895",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-47895.json",
      "version": "6"
    }
  }
}



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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.
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  • 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.