CVE-2026-7009 (GCVE-0-2026-7009)

Vulnerability from cvelistv5 – Published: 2026-05-13 08:28 – Updated: 2026-05-13 14:20
VLAI
Title
OCSP stapling bypass with Apple SecTrust
Summary
When curl is told to use the Certificate Status Request TLS extension, often referred to as *OCSP stapling*, to verify that the server certificate is valid, it fails to detect OCSP problems and instead wrongly consider the response as fine.
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Create a notification for this product.
Credits
Carlos Carrillo Stefan Eissing
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-05-13T09:05:48.665Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/04/29/12"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-7009",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T14:20:11.436717Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T14:20:33.908Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://hackerone.com/reports/3694390"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.19.0",
              "status": "affected",
              "version": "8.19.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Carlos Carrillo"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Stefan Eissing"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When curl is told to use the Certificate Status Request TLS extension, often\nreferred to as *OCSP stapling*, to verify that the server certificate is\nvalid, it fails to detect OCSP problems and instead wrongly consider the\nresponse as fine."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-295 Improper Certificate Validation",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-13T08:28:53.697Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-7009.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-7009.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3694390"
        }
      ],
      "title": "OCSP stapling bypass with Apple SecTrust"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2026-7009",
    "datePublished": "2026-05-13T08:28:53.697Z",
    "dateReserved": "2026-04-25T08:37:24.989Z",
    "dateUpdated": "2026-05-13T14:20:33.908Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-7009",
      "date": "2026-05-27",
      "epss": "0.00013",
      "percentile": "0.02006"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-7009\",\"sourceIdentifier\":\"2499f714-1537-4658-8207-48ae4bb9eae9\",\"published\":\"2026-05-13T13:01:57.100\",\"lastModified\":\"2026-05-14T14:17:05.223\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"When curl is told to use the Certificate Status Request TLS extension, often\\nreferred to as *OCSP stapling*, to verify that the server certificate is\\nvalid, it fails to detect OCSP problems and instead wrongly consider the\\nresponse as fine.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-295\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.17.0\",\"versionEndExcluding\":\"8.20.0\",\"matchCriteriaId\":\"6B99D3F9-89CA-45D0-BFA6-128FB2596B07\"}]}]}],\"references\":[{\"url\":\"https://curl.se/docs/CVE-2026-7009.html\",\"source\":\"2499f714-1537-4658-8207-48ae4bb9eae9\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://curl.se/docs/CVE-2026-7009.json\",\"source\":\"2499f714-1537-4658-8207-48ae4bb9eae9\",\"tags\":[\"Product\"]},{\"url\":\"https://hackerone.com/reports/3694390\",\"source\":\"2499f714-1537-4658-8207-48ae4bb9eae9\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Patch\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2026/04/29/12\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://hackerone.com/reports/3694390\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://www.openwall.com/lists/oss-security/2026/04/29/12\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2026-05-13T09:05:48.665Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"LOW\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-7009\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-13T14:20:11.436717Z\"}}}], \"references\": [{\"url\": \"https://hackerone.com/reports/3694390\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-13T14:18:43.490Z\"}}], \"cna\": {\"title\": \"OCSP stapling bypass with Apple SecTrust\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Carlos Carrillo\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Stefan Eissing\"}], \"affected\": [{\"vendor\": \"curl\", \"product\": \"curl\", \"versions\": [{\"status\": \"affected\", \"version\": \"8.19.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"8.19.0\"}, {\"status\": \"affected\", \"version\": \"8.18.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"8.18.0\"}, {\"status\": \"affected\", \"version\": \"8.17.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"8.17.0\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://curl.se/docs/CVE-2026-7009.json\", \"name\": \"json\"}, {\"url\": \"https://curl.se/docs/CVE-2026-7009.html\", \"name\": \"www\"}, {\"url\": \"https://hackerone.com/reports/3694390\", \"name\": \"issue\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"When curl is told to use the Certificate Status Request TLS extension, often\\nreferred to as *OCSP stapling*, to verify that the server certificate is\\nvalid, it fails to detect OCSP problems and instead wrongly consider the\\nresponse as fine.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-295 Improper Certificate Validation\"}]}], \"providerMetadata\": {\"orgId\": \"2499f714-1537-4658-8207-48ae4bb9eae9\", \"shortName\": \"curl\", \"dateUpdated\": \"2026-05-13T08:28:53.697Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-7009\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-13T14:20:33.908Z\", \"dateReserved\": \"2026-04-25T08:37:24.989Z\", \"assignerOrgId\": \"2499f714-1537-4658-8207-48ae4bb9eae9\", \"datePublished\": \"2026-05-13T08:28:53.697Z\", \"assignerShortName\": \"curl\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…
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

Author Source Type Date Other

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.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…