Vulnerability-Lookup

CVE-2026-80229 (GCVE-0-2026-80229)

Vulnerability from cvelistv5 – Published: 2026-09-06 17:47 – Updated: 2026-09-15 06:03

Title

OpenSSL provider use-after-free

Summary

When performing transfers via libcurl’s multi interface, pooled TLS connections can outlive their originating easy handles. In OpenSSL 3 provider configurations, libcurl attaches an allocated library context to the easy handle's state and passes it to OpenSSL without acquiring an ownership reference; destroying the easy handle prematurely frees this context while the active connection retains a dangling pointer, leading to a heap-use-after-free upon subsequent I/O or post-handshake operations.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 15:43 UTC

CWE

CWE-416 - Use After Free

Assigner

curl redhat root

References

3 references

URL	Tags
https://curl.se/docs/CVE-2026-80229.json
https://curl.se/docs/CVE-2026-80229.html
https://hackerone.com/reports/3969255

Impacted products

3 products

Vendor	Product	Version	CPE status
curl	curl	Affected: 8.14.0 , < 8.14.2 (semver) Affected: 8.15.0 , < 8.16.1 (semver) Affected: 8.17.0 , < 8.20.1 (semver) Affected: 8.21.0 , < 8.22.0 (semver)	guessed
curl	curl	Affected: f2ce6c46b9dcc46ced0ce43fa95176ea7599a854 , < 7ea37abc6ac0120ba5f6d94be8d196f7cf1506bb (git)	guessed
curl	curl	Affected: 8.21.0 Affected: 8.20.0 Affected: 8.19.0 Affected: 8.18.0 Affected: 8.17.0 Affected: 8.16.0 Affected: 8.15.0 Affected: 8.14.1 Affected: 8.14.0	guessed

Credits

Stanislav Fort (Aisle Research) Daniel Stenberg

Show details on NVD website

JSON

To clipboard

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              "descriptions": [
                {
                  "cweId": "CWE-416",
                  "description": "Use After Free",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-15T06:03:08.881Z",
            "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
            "shortName": "curl"
          },
          "references": [
            {
              "url": "https://curl.se/docs/CVE-2026-80229.json"
            },
            {
              "url": "https://curl.se/docs/CVE-2026-80229.html"
            },
            {
              "url": "https://hackerone.com/reports/3969255"
            }
          ],
          "title": "OpenSSL provider use-after-free",
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_osv": {
            "affected": [
              {
                "ranges": [
                  {
                    "events": [
                      {
                        "introduced": "8.14.0"
                      },
                      {
                        "fixed": "8.14.2"
                      },
                      {
                        "introduced": "8.15.0"
                      },
                      {
                        "fixed": "8.16.1"
                      },
                      {
                        "introduced": "8.17.0"
                      },
                      {
                        "fixed": "8.20.1"
                      },
                      {
                        "introduced": "8.21.0"
                      },
                      {
                        "fixed": "8.22.0"
                      }
                    ],
                    "type": "SEMVER"
                  },
                  {
                    "events": [
                      {
                        "introduced": "f2ce6c46b9dcc46ced0ce43fa95176ea7599a854"
                      },
                      {
                        "fixed": "7ea37abc6ac0120ba5f6d94be8d196f7cf1506bb"
                      }
                    ],
                    "repo": "https://github.com/curl/curl.git",
                    "type": "GIT"
                  }
                ],
                "versions": [
                  "8.21.0",
                  "8.20.0",
                  "8.19.0",
                  "8.18.0",
                  "8.17.0",
                  "8.16.0",
                  "8.15.0",
                  "8.14.1",
                  "8.14.0"
                ]
              }
            ],
            "aliases": [
              "CVE-2026-80229"
            ],
            "credits": [
              {
                "name": "Stanislav Fort (Aisle Research)",
                "type": "finder"
              },
              {
                "name": "Daniel Stenberg",
                "type": "remediation developer"
              }
            ],
            "database_specific": {
              "CWE": {
                "desc": "Use After Free",
                "id": "CWE-416"
              },
              "URL": "https://curl.se/docs/CVE-2026-80229.json",
              "affects": "both",
              "issue": "https://hackerone.com/reports/3969255",
              "last_affected": "8.21.0",
              "package": "curl",
              "severity": "Low",
              "www": "https://curl.se/docs/CVE-2026-80229.html"
            },
            "details": "When performing transfers via libcurl\u2019s multi interface, pooled TLS\nconnections can outlive their originating easy handles. In OpenSSL 3 provider\nconfigurations, libcurl attaches an allocated library context to the easy\nhandle\u0027s state and passes it to OpenSSL without acquiring an ownership\nreference; destroying the easy handle prematurely frees this context while the\nactive connection retains a dangling pointer, leading to a heap-use-after-free\nupon subsequent I/O or post-handshake operations.",
            "id": "CURL-CVE-2026-80229",
            "modified": "2026-09-07T10:34:51.00Z",
            "published": "2026-09-02T08:00:00.00Z",
            "schema_version": "1.5.0",
            "summary": "OpenSSL provider use-after-free"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "assignerShortName": "curl",
        "cveId": "CVE-2026-80229",
        "datePublished": "2026-09-06T17:47:59.510Z",
        "dateReserved": "2026-08-26T04:24:23.168Z",
        "dateUpdated": "2026-09-15T06:03:08.881Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

BELL-CVE-2026-80229 (CVE-2026-80229)

Vulnerability from osv_bellsoft – Published: 2026-09-04 06:05 – Updated: 2026-09-06 06:00 – Source website

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

URL

Type

https://docs.bell-sw.com/security/cves/CVE-2026-80229

ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Alpaquita:23",
        "name": "curl",
        "purl": "pkg:apk/alpaquita/curl?arch=source\u0026distro=23"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.1.0-r2"
            },
            {
              "fixed": "8.22.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Alpaquita:25",
        "name": "curl",
        "purl": "pkg:apk/alpaquita/curl?arch=source\u0026distro=25"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.14.0-r1"
            },
            {
              "fixed": "8.22.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Alpaquita:stream",
        "name": "curl",
        "purl": "pkg:apk/alpaquita/curl?arch=source\u0026distro=stream"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.1.2-r0"
            },
            {
              "fixed": "8.22.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "BellSoft Hardened Containers:stream",
        "name": "curl",
        "purl": "pkg:apk/bellsoft-hardened-containers/curl?arch=source\u0026distro=stream"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.1.2-r0"
            },
            {
              "fixed": "8.22.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "id": "BELL-CVE-2026-80229",
  "modified": "2026-09-06T06:00:39.517075Z",
  "published": "2026-09-04T06:05:07.755516Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://docs.bell-sw.com/security/cves/CVE-2026-80229"
    }
  ],
  "schema_version": "1.7.4",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-80229"
  ]
}

CERTFR-2026-AVI-1108

Vulnerability from certfr_avis - Published: 2026-09-02 - Updated: 2026-09-02

De multiples vulnérabilités ont été découvertes dans Curl. Certaines d'entre elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données, une atteinte à l'intégrité des données et un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

	Vendor	Product	Description
	Curl	cURL et libcurl	Curl versions postérieures ou égales à 7.44.0 et antérieures à 8.22.0

References

Title

Publication Time

FKIE_CVE-2026-80229

Vulnerability from fkie_nvd - Published: 2026-09-06 18:17 - Updated: 2026-09-15 07:16

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
2499f714-1537-4658-8207-48ae4bb9eae9	https://curl.se/docs/CVE-2026-80229.html	Patch, Vendor Advisory
2499f714-1537-4658-8207-48ae4bb9eae9	https://curl.se/docs/CVE-2026-80229.json	Vendor Advisory
2499f714-1537-4658-8207-48ae4bb9eae9	https://hackerone.com/reports/3969255	Exploit, Mitigation, Third Party Advisory

Impacted products

	Vendor	Product	Version
	haxx	curl	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThan": "8.14.2",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "semver"
            },
            {
              "lessThan": "8.16.1",
              "status": "affected",
              "version": "8.15.0",
              "versionType": "semver"
            },
            {
              "lessThan": "8.20.1",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            },
            {
              "lessThan": "8.22.0",
              "status": "affected",
              "version": "8.21.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "repo": "https://github.com/curl/curl.git",
          "vendor": "curl",
          "versions": [
            {
              "lessThan": "7ea37abc6ac0120ba5f6d94be8d196f7cf1506bb",
              "status": "affected",
              "version": "f2ce6c46b9dcc46ced0ce43fa95176ea7599a854",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "status": "affected",
              "version": "8.21.0"
            },
            {
              "status": "affected",
              "version": "8.20.0"
            },
            {
              "status": "affected",
              "version": "8.19.0"
            },
            {
              "status": "affected",
              "version": "8.18.0"
            },
            {
              "status": "affected",
              "version": "8.17.0"
            },
            {
              "status": "affected",
              "version": "8.16.0"
            },
            {
              "status": "affected",
              "version": "8.15.0"
            },
            {
              "status": "affected",
              "version": "8.14.1"
            },
            {
              "status": "affected",
              "version": "8.14.0"
            }
          ]
        }
      ],
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BD5E954C-B8F9-44EB-AD71-A556F95EEE58",
              "versionEndExcluding": "8.22.0",
              "versionStartIncluding": "8.14.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "When performing transfers via libcurl\u2019s multi interface, pooled TLS\nconnections can outlive their originating easy handles. In OpenSSL 3 provider\nconfigurations, libcurl attaches an allocated library context to the easy\nhandle\u0027s state and passes it to OpenSSL without acquiring an ownership\nreference; destroying the easy handle prematurely frees this context while the\nactive connection retains a dangling pointer, leading to a heap-use-after-free\nupon subsequent I/O or post-handshake operations."
    }
  ],
  "id": "CVE-2026-80229",
  "lastModified": "2026-09-15T07:16:30.157",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-80229",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-08T15:43:30.858480Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-06T18:17:22.217",
  "references": [
    {
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://curl.se/docs/CVE-2026-80229.html"
    },
    {
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://curl.se/docs/CVE-2026-80229.json"
    },
    {
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
      "tags": [
        "Exploit",
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://hackerone.com/reports/3969255"
    }
  ],
  "sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-JRP3-JQ4V-W9GC

Vulnerability from github – Published: 2026-09-06 18:34 – Updated: 2026-09-15 09:30

Details

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-80229"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-06T18:17:22Z",
    "severity": "HIGH"
  },
  "details": "When performing transfers via libcurl\u2019s multi interface, pooled TLS\nconnections can outlive their originating easy handles. In OpenSSL 3 provider\nconfigurations, libcurl attaches an allocated library context to the easy\nhandle\u0027s state and passes it to OpenSSL without acquiring an ownership\nreference; destroying the easy handle prematurely frees this context while the\nactive connection retains a dangling pointer, leading to a heap-use-after-free\nupon subsequent I/O or post-handshake operations.",
  "id": "GHSA-jrp3-jq4v-w9gc",
  "modified": "2026-09-15T09:30:30Z",
  "published": "2026-09-06T18:34:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80229"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/3969255"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-80229.html"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-80229.json"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

MSRC_CVE-2026-80229

Vulnerability from csaf_microsoft - Published: 2026-09-08 01:04 - Updated: 2026-09-15 01:52

Summary

OpenSSL provider use-after-free

Scope

1 vulnerability in this advisory, including CVE-2026-80229.

CVE-2026-80229

Known affected: 1 product Known not affected: 5 products

Open the full advisory

OPENSUSE-SU-2026:11696-1

Vulnerability from csaf_opensuse - Published: 2026-09-07 00:00 - Updated: 2026-09-17 17:23

Summary

curl-8.22.0-1.1 on GA media

Severity

Moderate

Scope

7 vulnerabilities in this advisory, including CVE-2026-80229.

CVE-2026-80229

3.1 (Low)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 36 products

Open the full advisory

OPENSUSE-SU-2026:21774-1

Vulnerability from csaf_opensuse - Published: 2026-09-06 16:56 - Updated: 2026-09-17 17:43

Summary

Security update for curl

Severity

Moderate

Scope

6 vulnerabilities in this advisory, including CVE-2026-80229.

CVE-2026-80229

3.1 (Low)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 15 products

Open the full advisory

SUSE-SU-2026:23498-1

Vulnerability from csaf_suse - Published: 2026-09-06 16:57 - Updated: 2026-09-17 16:21

Summary

Security update for curl

Severity

Moderate

Scope

6 vulnerabilities in this advisory, including CVE-2026-80229.

CVE-2026-80229

3.1 (Low)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 8 products

Open the full advisory

SUSE-SU-2026:23521-1

Vulnerability from csaf_suse - Published: 2026-09-04 09:08 - Updated: 2026-09-17 16:22

Summary

Security update for curl

Severity

Low

Scope

3 vulnerabilities in this advisory, including CVE-2026-80229.

CVE-2026-80229

3.1 (Low)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 8 products

Open the full advisory

SUSE-SU-2026:3958-1

Vulnerability from csaf_suse - Published: 2026-09-03 13:32 - Updated: 2026-09-17 16:45

Summary

Security update for curl

Severity

Moderate

Scope

6 vulnerabilities in this advisory, including CVE-2026-80229.

CVE-2026-80229

3.1 (Low)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 20 products

Open the full advisory

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-80229 (GCVE-0-2026-80229)

BELL-CVE-2026-80229 (CVE-2026-80229)

Solutions

Tags

Sightings

Nomenclature

Related by attack behaviour