CVE catalog
CVE-2026-8924
A flaw in curl’s cookie parsing logic allows a…
A flaw in curl’s cookie parsing logic allows a malicious HTTP server to set "super cookies" that bypass the Public Suffix List check. This enables an attacker-controlled origin to inject cookies that curl subsequently scopes and transmits to unrelated third-party domains.
- Severity
- Critical · CVSS 9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.66% · Oct 27, 2026
Projects and upstream resources
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": "fixed",
"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": "8.21.0~rc2-1"
},
{
"bug": null,
"name": "curl",
"type": "source",
"origin": null,
"release": "forky",
"urgency": "not yet assigned",
"fixed_version": "8.21.0~rc2-1"
},
{
"bug": null,
"name": "curl",
"type": "source",
"origin": null,
"release": "trixie",
"urgency": "not yet assigned",
"fixed_version": "8.14.1-2+deb13u7"
},
{
"bug": null,
"name": "curl",
"type": "source",
"origin": null,
"release": "bookworm",
"urgency": "not yet assigned",
"fixed_version": ""
}
],
"distribution_packages": [
{
"name": "curl",
"ecosystem": "cpe",
"fixed_version": "8.5.0-2ubuntu10.10"
},
{
"name": "libcurl3t64-gnutls",
"ecosystem": "cpe",
"fixed_version": "8.5.0-2ubuntu10.10"
},
{
"name": "libcurl4-doc",
"ecosystem": "cpe",
"fixed_version": "8.5.0-2ubuntu10.10"
},
{
"name": "libcurl4-gnutls-dev",
"ecosystem": "cpe",
"fixed_version": "8.5.0-2ubuntu10.10"
},
{
"name": "libcurl4-openssl-dev",
"ecosystem": "cpe",
"fixed_version": "8.5.0-2ubuntu10.10"
},
{
"name": "libcurl4t64",
"ecosystem": "cpe",
"fixed_version": "8.5.0-2ubuntu10.10"
},
{
"name": "curl",
"ecosystem": "cpe",
"fixed_version": "not yet fixed"
},
{
"name": "curl",
"ecosystem": "cpe",
"fixed_version": "8.21.0"
},
{
"name": "curl",
"ranges": [
{
"fixed": "8.21.0",
"introduced": "7.46.0",
"last_affected": "",
"start_excluding": ""
}
],
"ecosystem": "cpe",
"fixed_version": "8.21.0",
"provider_record_id": "NVD-CVE-2026-8924"
},
{
"name": "curl",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.46.0"
},
{
"fixed": "8.14.1-r3"
}
]
}
],
"release": "3.21",
"versions": [],
"ecosystem": "apk",
"fixed_version": "8.14.1-r3",
"provider_record_id": "ALPINE-CVE-2026-8924"
},
{
"name": "curl",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.46.0"
},
{
"fixed": "8.14.1-r4"
}
]
}
],
"release": "3.22",
"versions": [],
"ecosystem": "apk",
"fixed_version": "8.14.1-r4",
"provider_record_id": "ALPINE-CVE-2026-8924"
},
{
"name": "curl",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.46.0"
},
{
"fixed": "8.22.0-r0"
}
]
}
],
"release": "3.23",
"versions": [],
"ecosystem": "apk",
"fixed_version": "8.22.0-r0",
"provider_record_id": "ALPINE-CVE-2026-8924"
},
{
"name": "curl",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "7.46.0"
},
{
"fixed": "8.21.0-r0"
}
]
}
],
"release": "3.24",
"versions": [],
"ecosystem": "apk",
"fixed_version": "8.21.0-r0",
"provider_record_id": "ALPINE-CVE-2026-8924"
},
{
"name": "curl",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.68.0-1ubuntu2.25+esm4"
}
]
}
],
"release": "pro",
"versions": [
"7.65.3-1ubuntu3",
"7.65.3-1ubuntu4",
"7.66.0-1ubuntu1",
"7.67.0-2ubuntu1",
"7.68.0-1ubuntu1",
"7.68.0-1ubuntu2",
"7.68.0-1ubuntu2.1",
"7.68.0-1ubuntu2.2",
"7.68.0-1ubuntu2.4",
"7.68.0-1ubuntu2.5",
"7.68.0-1ubuntu2.6",
"7.68.0-1ubuntu2.7",
"7.68.0-1ubuntu2.10",
"7.68.0-1ubuntu2.11",
"7.68.0-1ubuntu2.12",
"7.68.0-1ubuntu2.13",
"7.68.0-1ubuntu2.14",
"7.68.0-1ubuntu2.15",
"7.68.0-1ubuntu2.16",
"7.68.0-1ubuntu2.18",
"7.68.0-1ubuntu2.19",
"7.68.0-1ubuntu2.20",
"7.68.0-1ubuntu2.21",
"7.68.0-1ubuntu2.22",
"7.68.0-1ubuntu2.23",
"7.68.0-1ubuntu2.24",
"7.68.0-1ubuntu2.25",
"7.68.0-1ubuntu2.25+esm2",
"7.68.0-1ubuntu2.25+esm3"
],
"ecosystem": "deb",
"fixed_version": "7.68.0-1ubuntu2.25+esm4",
"provider_record_id": "UBUNTU-CVE-2026-8924"
},
{
"name": "curl",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.81.0-1ubuntu1.25"
}
]
}
],
"release": "22.04",
"versions": [
"7.74.0-1.3ubuntu2",
"7.74.0-1.3ubuntu3",
"7.80.0-3",
"7.81.0-1",
"7.81.0-1ubuntu1.1",
"7.81.0-1ubuntu1.2",
"7.81.0-1ubuntu1.3",
"7.81.0-1ubuntu1.4",
"7.81.0-1ubuntu1.6",
"7.81.0-1ubuntu1.7",
"7.81.0-1ubuntu1.8",
"7.81.0-1ubuntu1.10",
"7.81.0-1ubuntu1.11",
"7.81.0-1ubuntu1.13",
"7.81.0-1ubuntu1.14",
"7.81.0-1ubuntu1.15",
"7.81.0-1ubuntu1.16",
"7.81.0-1ubuntu1.17",
"7.81.0-1ubuntu1.18",
"7.81.0-1ubuntu1.19",
"7.81.0-1ubuntu1.20",
"7.81.0-1ubuntu1.21",
"7.81.0-1ubuntu1.22",
"7.81.0-1ubuntu1.23",
"7.81.0-1ubuntu1.24"
],
"ecosystem": "deb",
"fixed_version": "7.81.0-1ubuntu1.25",
"provider_record_id": "UBUNTU-CVE-2026-8924"
},
{
"name": "curl",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.5.0-2ubuntu10.10"
}
]
}
],
"release": "24.04",
"versions": [
"8.2.1-1ubuntu3",
"8.2.1-1ubuntu3.1",
"8.4.0-2ubuntu1",
"8.5.0-2ubuntu1",
"8.5.0-2ubuntu2",
"8.5.0-2ubuntu8",
"8.5.0-2ubuntu9",
"8.5.0-2ubuntu10",
"8.5.0-2ubuntu10.1",
"8.5.0-2ubuntu10.2",
"8.5.0-2ubuntu10.3",
"8.5.0-2ubuntu10.4",
"8.5.0-2ubuntu10.5",
"8.5.0-2ubuntu10.6",
"8.5.0-2ubuntu10.7",
"8.5.0-2ubuntu10.8",
"8.5.0-2ubuntu10.9"
],
"ecosystem": "deb",
"fixed_version": "8.5.0-2ubuntu10.10",
"provider_record_id": "UBUNTU-CVE-2026-8924"
},
{
"name": "curl",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.14.1-2ubuntu1.4"
}
]
}
],
"release": "25.10",
"versions": [
"8.12.1-3ubuntu1",
"8.13.0-5ubuntu1",
"8.14.1-1ubuntu2",
"8.14.1-1ubuntu3",
"8.14.1-2ubuntu1",
"8.14.1-2ubuntu1.1",
"8.14.1-2ubuntu1.2",
"8.14.1-2ubuntu1.3"
],
"ecosystem": "deb",
"fixed_version": "8.14.1-2ubuntu1.4",
"provider_record_id": "UBUNTU-CVE-2026-8924"
},
{
"name": "curl",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.18.0-1ubuntu2.2"
}
]
}
],
"release": "26.04",
"versions": [
"8.14.1-2ubuntu1",
"8.17.0-1ubuntu1",
"8.18.0-1ubuntu1",
"8.18.0-1ubuntu2",
"8.18.0-1ubuntu2.1"
],
"ecosystem": "deb",
"fixed_version": "8.18.0-1ubuntu2.2",
"provider_record_id": "UBUNTU-CVE-2026-8924"
},
{
"name": "libpsl",
"distro": "opensuse",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.23.0-1.1"
}
]
}
],
"release": "tumbleweed",
"versions": [],
"ecosystem": "rpm",
"fixed_version": "0.23.0-1.1",
"provider_record_id": "OPENSUSE-SU-2026:11266-1"
}
]
}Publisher notes
[bookworm] curl: Minor issue; trailing-dot super cookie; PSL-enabled build mitigates
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 · bookwormAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityAffected
nvd · curl · debian · bookworm
- [libcurl3-gnutls]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityAffected
nvd · curl · debian · bookworm
- [libcurl3-nss]Unknown
Source package: [curl]
Details (4)
7.88.1-10+deb12u15· amd64 · bookwormAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityAffected
nvd · curl · debian · bookworm
- [libcurl4]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityAffected
nvd · curl · debian · bookworm
- [libcurl4-doc]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· all · bookwormAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u15· all · bookwormAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· all · bookworm-backportsAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· all · bookworm-backportsAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· all · bookworm-securityAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· all · bookworm-securityAffected
nvd · curl · debian · bookworm
- [libcurl4-gnutls-dev]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityAffected
nvd · curl · debian · bookworm
- [libcurl4-nss-dev]Unknown
Source package: [curl]
Details (4)
7.88.1-10+deb12u15· amd64 · bookwormAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityAffected
nvd · curl · debian · bookworm
- [libcurl4-openssl-dev]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsAffected
nvd · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityAffected
nvd · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityAffected
nvd · curl · debian · bookworm
[openSUSE Tumbleweed]
- [libpsl5]Unknown
Source package: [libpsl]
Details (1)
0.23.3-1.1· x86_64 · tumbleweedUnknown · Fixed:
0.23.0-1.1Version impact unknown
nvd · libpsl · opensuse · tumbleweed
- [libpsl5-32bit]Unknown
Source package: [libpsl]
Details (1)
0.23.3-1.1· x86_64 · tumbleweedUnknown · Fixed:
0.23.0-1.1Version impact unknown
nvd · libpsl · opensuse · tumbleweed
- [libpsl-devel]Unknown
Source package: [libpsl]
Details (1)
0.23.3-1.1· x86_64 · tumbleweedUnknown · Fixed:
0.23.0-1.1Version impact unknown
nvd · libpsl · opensuse · tumbleweed
- [psl]Unknown
Source package: [libpsl]
Details (1)
0.23.3-1.1· x86_64 · tumbleweedUnknown · Fixed:
0.23.0-1.1Version impact unknown
nvd · libpsl · opensuse · tumbleweed
Observed:
References
- [https://access.redhat.com/errata/RHSA-2026:56869]
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_22553-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-8924]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-8924]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-8924]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11266-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-8924]
- [https://ubuntu.com/security/notices/USN-8487-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2065.json]
[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)]