CVE catalog

CVE-2026-80230

curl vulnerabilities

When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable standard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and `CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on connections established without a presented server certificate. Bypassing the pinning check under these disabled-verification conditions allows unauthenticated connections to succeed when they should be rejected.

Severity: Critical · CVSS 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Published: Jul 3, 2026, 7:16:25 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.37% · Oct 27, 2026

Projects and upstream resources

[curl][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "curl",
      "status": "fixed",
      "release": "sid",
      "version": "8.23.0-1"
    },
    {
      "name": "curl",
      "status": "fixed",
      "release": "forky",
      "version": "8.22.0-1"
    },
    {
      "name": "curl",
      "status": "vulnerable",
      "release": "trixie",
      "version": "8.14.1-2+deb13u5"
    },
    {
      "name": "curl",
      "status": "vulnerable",
      "release": "trixie-security",
      "version": "8.14.1-2+deb13u7"
    },
    {
      "name": "curl",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "7.88.1-10+deb12u15"
    },
    {
      "name": "curl",
      "status": "vulnerable",
      "release": "bookworm-security",
      "version": "7.88.1-10+deb12u5"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "curl",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "8.22.0~rc3-1"
    },
    {
      "bug": null,
      "name": "curl",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "8.22.0~rc3-1"
    },
    {
      "bug": null,
      "name": "curl",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "curl",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "curl",
      "ranges": [
        {
          "fixed": "8.22.0",
          "introduced": "7.45.0",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "fixed_version": "8.22.0",
      "provider_record_id": "NVD-CVE-2026-80230"
    },
    {
      "name": "curl",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "8.5.0-2ubuntu10.15",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "8.5.0-2ubuntu10.15"
    },
    {
      "name": "libcurl3t64-gnutls",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "8.5.0-2ubuntu10.15",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "8.5.0-2ubuntu10.15"
    },
    {
      "name": "libcurl4-doc",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "8.5.0-2ubuntu10.15",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "8.5.0-2ubuntu10.15"
    },
    {
      "name": "libcurl4-gnutls-dev",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "8.5.0-2ubuntu10.15",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "8.5.0-2ubuntu10.15"
    },
    {
      "name": "libcurl4-openssl-dev",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "8.5.0-2ubuntu10.15",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "8.5.0-2ubuntu10.15"
    },
    {
      "name": "libcurl4t64",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "8.5.0-2ubuntu10.15",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "8.5.0-2ubuntu10.15"
    },
    {
      "name": "curl",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "7.45.0"
            },
            {
              "fixed": "8.22.0-r0"
            }
          ]
        }
      ],
      "release": "3.23",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "8.22.0-r0",
      "provider_record_id": "ALPINE-CVE-2026-80230"
    },
    {
      "name": "curl",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "7.45.0"
            },
            {
              "fixed": "8.22.0-r0"
            }
          ]
        }
      ],
      "release": "3.24",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "8.22.0-r0",
      "provider_record_id": "ALPINE-CVE-2026-80230"
    }
  ]
}

Publisher notes

[trixie] curl: Minor issue [bookworm] curl: Minor issue

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[curl]Unknown
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
[libcurl3-gnutls]Unknown
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
[libcurl3-nss]Unknown
Source package: [curl]
Details (4)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
[libcurl4]Unknown
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
[libcurl4-doc]Unknown
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · all · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u15 · all · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · all · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · all · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · all · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · all · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
[libcurl4-gnutls-dev]Unknown
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
[libcurl4-nss-dev]Unknown
Source package: [curl]
Details (4)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
[libcurl4-openssl-dev]Unknown
Source package: [curl]
Details (6)
- 7.88.1-10+deb12u15 · amd64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u15 · arm64 · bookworm
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · amd64 · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 8.14.1-2+deb13u2~bpo13+1 · arm64 · bookworm-backports
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · amd64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12
- 7.88.1-10+deb12u5 · arm64 · bookworm-security
  Affected
  usn · curl · debian · bookworm; usn · curl · debian · 12

[Debian 13 (Trixie)]

[curl]Unknown
Details (5)
- 8.14.1-2+deb13u4 · amd64 · trixie
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u4 · arm64 · trixie
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · amd64 · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · arm64 · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u7 · amd64 · trixie-security
  Affected
  usn · curl · debian · 13
[libcurl3t64-gnutls]Unknown
Source package: [curl]
Details (5)
- 8.14.1-2+deb13u4 · amd64 · trixie
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u4 · arm64 · trixie
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · amd64 · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · arm64 · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u7 · amd64 · trixie-security
  Affected
  usn · curl · debian · 13
[libcurl4-doc]Unknown
Source package: [curl]
Details (5)
- 8.14.1-2+deb13u4 · all · trixie
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u4 · all · trixie
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · all · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · all · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u7 · all · trixie-security
  Affected
  usn · curl · debian · 13
[libcurl4-gnutls]Unknown
Source package: [curl]
Details (2)
- 8.21.0-2~bpo13+1 · amd64 · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · arm64 · trixie-backports
  Affected
  usn · curl · debian · 13
[libcurl4-gnutls-dev]Unknown
Source package: [curl]
Details (5)
- 8.14.1-2+deb13u4 · amd64 · trixie
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u4 · arm64 · trixie
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · amd64 · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · arm64 · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u7 · amd64 · trixie-security
  Affected
  usn · curl · debian · 13
[libcurl4-openssl-dev]Unknown
Source package: [curl]
Details (5)
- 8.14.1-2+deb13u4 · amd64 · trixie
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u4 · arm64 · trixie
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · amd64 · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · arm64 · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u7 · amd64 · trixie-security
  Affected
  usn · curl · debian · 13
[libcurl4t64]Unknown
Source package: [curl]
Details (5)
- 8.14.1-2+deb13u4 · amd64 · trixie
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u4 · arm64 · trixie
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · amd64 · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.21.0-2~bpo13+1 · arm64 · trixie-backports
  Affected
  usn · curl · debian · 13
- 8.14.1-2+deb13u7 · amd64 · trixie-security
  Affected
  usn · curl · debian · 13

Observed: Oct 27, 2026, 7:13:12 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]