HighFix available
edk2, edk2-hwe and 2 more products — security advisory
Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames. Impact summary: A malicious remote peer can cause an unbounded memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or server and a Denial of Service. A remote peer may exhaust heap memory by flooding the local QUIC stack with PATH_CHALLENGE frames. The local QUIC stack allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary.
- Products
- edk2, edk2-hwe, nodejs, openssl
- Affected versions
- 12.22.5~dfsg-5ubuntu1, 12.22.7~dfsg-2ubuntu1, 12.22.7~dfsg-2ubuntu3, 12.22.9~dfsg-1ubuntu2, 12.22.9~dfsg-1ubuntu3, 12.22.9~dfsg-1ubuntu3.1, 12.22.9~dfsg-1ubuntu3.2, 12.22.9~dfsg-1ubuntu3.3, 12.22.9~dfsg-1ubuntu3.4, 12.22.9~dfsg-1ubuntu3.5, 12.22.9~dfsg-1ubuntu3.6, 12.22.9~dfsg-1ubuntu3.6+esm2, 2025.02-3ubuntu2, 2025.02-8, 2025.02-8ubuntu1, 2025.02-8ubuntu2, 2025.02-8ubuntu3, 2025.02-8ubuntu3.1, 2025.02-8ubuntu3.2, 2025.11-3ubuntu6, 2025.11-3ubuntu7, 2025.11-3ubuntu7.2, 2025.11-3ubuntu7.3, 2025.11-3ubuntu8, 2025.11-3ubuntu8.2, 2025.11-3ubuntu9, 2026.05-2ubuntu1, 2026.05-2ubuntu2, 2026.05-2ubuntu3, 3.4.1-1ubuntu3, 3.5.0-2ubuntu1, 3.5.2-1ubuntu1, 3.5.3-1ubuntu2, 3.5.3-1ubuntu3, 3.5.3-1ubuntu3.3, 3.5.5-1ubuntu1, 3.5.5-1ubuntu3
- Fixed versions
- 3.5.3-1ubuntu3.4, 3.5.5-1ubuntu3.2
- CVEs
- CVE-2026-34183
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:00 UTC · Revision 1
Source evidence
Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames. Impact summary: A malicious remote peer can cause an unbounded memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or server and a Denial of Service. A remote peer may exhaust heap memory by flooding the local QUIC stack with PATH_CHALLENGE frames. The local QUIC stack allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary.
osv:UBUNTU-CVE-2026-34183
nodejs
Fixed versions: Not specified
edk2
Fixed versions: Not specified
openssl
Fixed versions: 3.5.3-1ubuntu3.4
edk2
Fixed versions: Not specified
edk2-hwe
Fixed versions: Not specified
edk2
Fixed versions: Not specified
edk2-hwe
Fixed versions: Not specified
openssl
Fixed versions: 3.5.5-1ubuntu3.2
Complete source record
{
"id": "7da0cbec68b82a5410e937a5404296cde432e90c32e79c05e375e9f4fdad01ce",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-34183",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-34183",
"summary": "Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames. Impact summary: A malicious remote peer can cause an unbounded memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or server and a Denial of Service. A remote peer may exhaust heap memory by flooding the local QUIC stack with PATH_CHALLENGE frames. The local QUIC stack allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary.",
"evidence": "osv:UBUNTU-CVE-2026-34183",
"products": [
{
"name": {
"value": "nodejs",
"evidence": "/affected/0/package/name"
},
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{
"value": "12.22.5~dfsg-5ubuntu1",
"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
},
{
"value": "12.22.7~dfsg-2ubuntu3",
"evidence": "/affected/0/versions"
},
{
"value": "12.22.9~dfsg-1ubuntu2",
"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
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{
"value": "12.22.9~dfsg-1ubuntu3.2",
"evidence": "/affected/0/versions"
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{
"value": "12.22.9~dfsg-1ubuntu3.3",
"evidence": "/affected/0/versions"
},
{
"value": "12.22.9~dfsg-1ubuntu3.4",
"evidence": "/affected/0/versions"
},
{
"value": "12.22.9~dfsg-1ubuntu3.5",
"evidence": "/affected/0/versions"
},
{
"value": "12.22.9~dfsg-1ubuntu3.6",
"evidence": "/affected/0/versions"
},
{
"value": "12.22.9~dfsg-1ubuntu3.6+esm2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "edk2",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "2025.02-3ubuntu2",
"evidence": "/affected/1/versions"
},
{
"value": "2025.02-8",
"evidence": "/affected/1/versions"
},
{
"value": "2025.02-8ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "2025.02-8ubuntu2",
"evidence": "/affected/1/versions"
},
{
"value": "2025.02-8ubuntu3",
"evidence": "/affected/1/versions"
},
{
"value": "2025.02-8ubuntu3.1",
"evidence": "/affected/1/versions"
},
{
"value": "2025.02-8ubuntu3.2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.5.3-1ubuntu3.4",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "3.4.1-1ubuntu3",
"evidence": "/affected/2/versions"
},
{
"value": "3.5.0-2ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "3.5.2-1ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "3.5.3-1ubuntu2",
"evidence": "/affected/2/versions"
},
{
"value": "3.5.3-1ubuntu3",
"evidence": "/affected/2/versions"
},
{
"value": "3.5.3-1ubuntu3.3",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "edk2",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2025.11-3ubuntu7",
"evidence": "/affected/3/versions"
},
{
"value": "2025.11-3ubuntu8",
"evidence": "/affected/3/versions"
},
{
"value": "2026.05-2ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "2026.05-2ubuntu2",
"evidence": "/affected/3/versions"
},
{
"value": "2026.05-2ubuntu3",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "edk2-hwe",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2025.11-3ubuntu8",
"evidence": "/affected/4/versions"
},
{
"value": "2025.11-3ubuntu9",
"evidence": "/affected/4/versions"
},
{
"value": "2026.05-2ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "2026.05-2ubuntu2",
"evidence": "/affected/4/versions"
},
{
"value": "2026.05-2ubuntu3",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "edk2",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2025.02-8ubuntu3",
"evidence": "/affected/5/versions"
},
{
"value": "2025.11-3ubuntu6",
"evidence": "/affected/5/versions"
},
{
"value": "2025.11-3ubuntu7",
"evidence": "/affected/5/versions"
},
{
"value": "2025.11-3ubuntu7.2",
"evidence": "/affected/5/versions"
},
{
"value": "2025.11-3ubuntu7.3",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "edk2-hwe",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2025.11-3ubuntu6",
"evidence": "/affected/6/versions"
},
{
"value": "2025.11-3ubuntu8",
"evidence": "/affected/6/versions"
},
{
"value": "2025.11-3ubuntu8.2",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "openssl",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.5.5-1ubuntu3.2",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": [
{
"value": "3.5.3-1ubuntu2",
"evidence": "/affected/7/versions"
},
{
"value": "3.5.5-1ubuntu1",
"evidence": "/affected/7/versions"
},
{
"value": "3.5.5-1ubuntu3",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-34183",
"aliases": [
"UBUNTU-CVE-2026-34183"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "nodejs",
"purl": "pkg:deb/ubuntu/nodejs?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"12.22.5~dfsg-5ubuntu1",
"12.22.7~dfsg-2ubuntu1",
"12.22.7~dfsg-2ubuntu3",
"12.22.9~dfsg-1ubuntu2",
"12.22.9~dfsg-1ubuntu3",
"12.22.9~dfsg-1ubuntu3.1",
"12.22.9~dfsg-1ubuntu3.2",
"12.22.9~dfsg-1ubuntu3.3",
"12.22.9~dfsg-1ubuntu3.4",
"12.22.9~dfsg-1ubuntu3.5",
"12.22.9~dfsg-1ubuntu3.6",
"12.22.9~dfsg-1ubuntu3.6+esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34183.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libnode72",
"binary_version": "12.22.9~dfsg-1ubuntu3.6+esm2"
},
{
"binary_name": "nodejs",
"binary_version": "12.22.9~dfsg-1ubuntu3.6+esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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}
]
}
],
"package": {
"name": "edk2",
"purl": "pkg:deb/ubuntu/edk2?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"2025.02-3ubuntu2",
"2025.02-8",
"2025.02-8ubuntu1",
"2025.02-8ubuntu2",
"2025.02-8ubuntu3",
"2025.02-8ubuntu3.1",
"2025.02-8ubuntu3.2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34183.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "efi-shell-aa64",
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},
{
"binary_name": "efi-shell-arm",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "efi-shell-ia32",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "efi-shell-loongarch64",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "efi-shell-riscv64",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "efi-shell-x64",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "ovmf",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "ovmf-ia32",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "ovmf-inteltdx",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "ovmf-legacy",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "qemu-efi-aarch64",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "qemu-efi-arm",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "qemu-efi-loongarch64",
"binary_version": "2025.02-8ubuntu3.2"
},
{
"binary_name": "qemu-efi-riscv64",
"binary_version": "2025.02-8ubuntu3.2"
}
]
}
},
{
"ranges": [
{
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{
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},
{
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}
]
}
],
"package": {
"name": "openssl",
"purl": "pkg:deb/ubuntu/openssl?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"3.4.1-1ubuntu3",
"3.5.0-2ubuntu1",
"3.5.2-1ubuntu1",
"3.5.3-1ubuntu2",
"3.5.3-1ubuntu3",
"3.5.3-1ubuntu3.3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34183.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libssl3t64",
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},
{
"binary_name": "openssl",
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},
{
"binary_name": "openssl-provider-legacy",
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}
],
"availability": "No subscription required"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
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}
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}
],
"package": {
"name": "edk2",
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"ecosystem": "Ubuntu:26.10"
},
"versions": [
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"2025.11-3ubuntu8",
"2026.05-2ubuntu1",
"2026.05-2ubuntu2",
"2026.05-2ubuntu3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34183.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "efi-shell-aa64",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "efi-shell-loongarch64",
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},
{
"binary_name": "efi-shell-riscv64",
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},
{
"binary_name": "efi-shell-x64",
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},
{
"binary_name": "ovmf",
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},
{
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},
{
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},
{
"binary_name": "ovmf-inteltdx",
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},
{
"binary_name": "ovmf-legacy",
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},
{
"binary_name": "qemu-efi-aarch64",
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},
{
"binary_name": "qemu-efi-loongarch64",
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},
{
"binary_name": "qemu-efi-riscv64",
"binary_version": "2026.05-2ubuntu3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "edk2-hwe",
"purl": "pkg:deb/ubuntu/edk2-hwe?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"2025.11-3ubuntu8",
"2025.11-3ubuntu9",
"2026.05-2ubuntu1",
"2026.05-2ubuntu2",
"2026.05-2ubuntu3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34183.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "efi-shell-aa64-hwe",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "efi-shell-loongarch64-hwe",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "efi-shell-riscv64-hwe",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "efi-shell-x64-hwe",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "ovmf-amdsev-hwe",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "ovmf-generic-hwe",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "ovmf-hwe",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "ovmf-inteltdx-hwe",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "ovmf-legacy-hwe",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "qemu-efi-aarch64-hwe",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "qemu-efi-loongarch64-hwe",
"binary_version": "2026.05-2ubuntu3"
},
{
"binary_name": "qemu-efi-riscv64-hwe",
"binary_version": "2026.05-2ubuntu3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "edk2",
"purl": "pkg:deb/ubuntu/edk2?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"2025.02-8ubuntu3",
"2025.11-3ubuntu6",
"2025.11-3ubuntu7",
"2025.11-3ubuntu7.2",
"2025.11-3ubuntu7.3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34183.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "efi-shell-aa64",
"binary_version": "2025.11-3ubuntu7.3"
},
{
"binary_name": "efi-shell-loongarch64",
"binary_version": "2025.11-3ubuntu7.3"
},
{
"binary_name": "efi-shell-riscv64",
"binary_version": "2025.11-3ubuntu7.3"
},
{
"binary_name": "efi-shell-x64",
"binary_version": "2025.11-3ubuntu7.3"
},
{
"binary_name": "ovmf",
"binary_version": "2025.11-3ubuntu7.3"
},
{
"binary_name": "ovmf-amdsev",
"binary_version": "2025.11-3ubuntu7.3"
},
{
"binary_name": "ovmf-generic",
"binary_version": "2025.11-3ubuntu7.3"
},
{
"binary_name": "ovmf-inteltdx",
"binary_version": "2025.11-3ubuntu7.3"
},
{
"binary_name": "ovmf-legacy",
"binary_version": "2025.11-3ubuntu7.3"
},
{
"binary_name": "qemu-efi-aarch64",
"binary_version": "2025.11-3ubuntu7.3"
},
{
"binary_name": "qemu-efi-loongarch64",
"binary_version": "2025.11-3ubuntu7.3"
},
{
"binary_name": "qemu-efi-riscv64",
"binary_version": "2025.11-3ubuntu7.3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "edk2-hwe",
"purl": "pkg:deb/ubuntu/edk2-hwe?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"2025.11-3ubuntu6",
"2025.11-3ubuntu8",
"2025.11-3ubuntu8.2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34183.json"
},
"ecosystem_specific": {
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"binary_name": "efi-shell-aa64-hwe",
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{
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{
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{
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"binary_version": "2025.11-3ubuntu8.2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.5-1ubuntu3.2"
}
]
}
],
"package": {
"name": "openssl",
"purl": "pkg:deb/ubuntu/openssl?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
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"3.5.5-1ubuntu1",
"3.5.5-1ubuntu3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34183.json"
},
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{
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}
}
],
"modified": "2026-10-17T13:00:00.818470916Z",
"provider": "osv",
"upstream": [
"CVE-2026-34183"
],
"references": [
"https://ubuntu.com/security/CVE-2026-34183",
"https://www.cve.org/CVERecord?id=CVE-2026-34183",
"https://openssl-library.org/news/secadv/20260609.txt",
"https://ubuntu.com/security/notices/USN-8414-1"
]
},
"related_cves": [
{
"value": "CVE-2026-34183",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360115,
"published_at": "2026-06-09T00:00:00+00:00"
}