MediumFix available
edk2, edk2-hwe and 3 more products — security advisory
Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid). If a server reuses an OSSL_CMP_CTX frequently, this cache of extraCerts may grow unboundedly, and a malicious client may flood a CMP server with requests driving this growth. Impact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX for the lifetime of a server process may observe unbounded memory growth in the event a malicious client repeatedly sends requests containing unique extra certificates, which may lead to OOM conditions. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: If a remote user sends CMP messages to a server with a list of extraCerts and the message is rejected, the extraCerts from the message remains in the server contexts untrusted certificate stack. This exposes servers with long lived ctx objects to Denial of Service attacks in which an attacker sends messages intending to be rejected with a large list of additional certificates repeatedly, forcing the server to store them indefinitely. The issue was fixed by removing the added extra certs if the message is rejected, using the same method as when the context is configured to not do caching at all. FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE.
- Products
- edk2, edk2-hwe, nodejs, openssl, openssl-fips
- Affected versions
- 0.10.25~dfsg2-2ubuntu1, 1.1.1l-1ubuntu1, 2023.05-2, 2023.11-2, 2023.11-3, 2023.11-4, 2023.11-5, 2023.11-6, 2023.11-8, 2024.02-1, 2024.02-2, 2024.02-2ubuntu0.1, 2024.02-2ubuntu0.10, 2024.02-2ubuntu0.3, 2024.02-2ubuntu0.4, 2024.02-2ubuntu0.5, 2024.02-2ubuntu0.6, 2024.02-2ubuntu0.7, 2024.02-2ubuntu0.8, 2024.02-2ubuntu0.9, 2025.02-8ubuntu3, 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, 3.0.0-1ubuntu1, 3.0.1-0ubuntu1, 3.0.10-1ubuntu2, 3.0.10-1ubuntu2.1, 3.0.10-1ubuntu3, 3.0.10-1ubuntu4, 3.0.13-0ubuntu2, 3.0.13-0ubuntu3, 3.0.13-0ubuntu3+Fips1, 3.0.13-0ubuntu3.1, 3.0.13-0ubuntu3.11, 3.0.13-0ubuntu3.12, 3.0.13-0ubuntu3.12+Fips1, 3.0.13-0ubuntu3.2, 3.0.13-0ubuntu3.3, 3.0.13-0ubuntu3.4, 3.0.13-0ubuntu3.5, 3.0.13-0ubuntu3.6, 3.0.13-0ubuntu3.6+Fips1, 3.0.13-0ubuntu3.7, 3.0.13-0ubuntu3.9, 3.0.2-0ubuntu1, 3.0.2-0ubuntu1.1, 3.0.2-0ubuntu1.10, 3.0.2-0ubuntu1.10+Fips1, 3.0.2-0ubuntu1.12, 3.0.2-0ubuntu1.12+Fips1, 3.0.2-0ubuntu1.13, 3.0.2-0ubuntu1.14, 3.0.2-0ubuntu1.14+Fips1, 3.0.2-0ubuntu1.15, 3.0.2-0ubuntu1.15+Fips1, 3.0.2-0ubuntu1.16, 3.0.2-0ubuntu1.16+Fips1, 3.0.2-0ubuntu1.17, 3.0.2-0ubuntu1.17+Fips1, 3.0.2-0ubuntu1.18, 3.0.2-0ubuntu1.18+Fips1, 3.0.2-0ubuntu1.19, 3.0.2-0ubuntu1.19+Fips1, 3.0.2-0ubuntu1.2, 3.0.2-0ubuntu1.20, 3.0.2-0ubuntu1.20+Fips1, 3.0.2-0ubuntu1.21, 3.0.2-0ubuntu1.21+Fips1, 3.0.2-0ubuntu1.23, 3.0.2-0ubuntu1.23+Fips1, 3.0.2-0ubuntu1.25, 3.0.2-0ubuntu1.25+Fips1, 3.0.2-0ubuntu1.26, 3.0.2-0ubuntu1.26+Fips1, 3.0.2-0ubuntu1.4, 3.0.2-0ubuntu1.5, 3.0.2-0ubuntu1.6, 3.0.2-0ubuntu1.7, 3.0.2-0ubuntu1.8, 3.0.2-0ubuntu1.9, 3.0.5-0ubuntu0.1+Fips2.1, 3.0.5-0ubuntu0.2+Fips1, 3.5.3-1ubuntu2, 3.5.5-1ubuntu1, 3.5.5-1ubuntu3, 3.5.5-1ubuntu3.2, 3.5.5-1ubuntu3.3, 4.2.2~dfsg-1, 4.2.3~dfsg-1, 4.2.4~dfsg-1ubuntu1, 4.2.4~dfsg-2, 4.2.6~dfsg-1ubuntu1, 4.2.6~dfsg-1ubuntu4, 4.2.6~dfsg-1ubuntu4.1, 4.2.6~dfsg-1ubuntu4.2, 4.2.6~dfsg-1ubuntu4.2+esm1, 4.2.6~dfsg-1ubuntu4.2+esm2, 4.2.6~dfsg-1ubuntu4.2+esm3, 6.11.4~dfsg-1ubuntu1, 6.11.4~dfsg-1ubuntu2, 6.12.0~dfsg-1ubuntu1, 6.12.0~dfsg-2ubuntu1, 6.12.0~dfsg-2ubuntu2, 8.10.0~dfsg-2, 8.10.0~dfsg-2ubuntu0.2, 8.10.0~dfsg-2ubuntu0.3, 8.10.0~dfsg-2ubuntu0.4, 8.10.0~dfsg-2ubuntu0.4+esm1, 8.10.0~dfsg-2ubuntu0.4+esm2, 8.10.0~dfsg-2ubuntu0.4+esm3, 8.10.0~dfsg-2ubuntu0.4+esm4, 8.10.0~dfsg-2ubuntu0.4+esm5, 8.10.0~dfsg-2ubuntu0.4+esm6
- Fixed versions
- 3.0.13-0ubuntu3.15, 3.0.13-0ubuntu3.15+Fips1, 3.0.2-0ubuntu1.29, 3.0.2-0ubuntu1.29+Fips1, 3.5.5-1ubuntu3.4
- CVEs
- CVE-2026-63074
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:49 UTC · Revision 1
Source evidence
Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid). If a server reuses an OSSL_CMP_CTX frequently, this cache of extraCerts may grow unboundedly, and a malicious client may flood a CMP server with requests driving this growth. Impact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX for the lifetime of a server process may observe unbounded memory growth in the event a malicious client repeatedly sends requests containing unique extra certificates, which may lead to OOM conditions. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: If a remote user sends CMP messages to a server with a list of extraCerts and the message is rejected, the extraCerts from the message remains in the server contexts untrusted certificate stack. This exposes servers with long lived ctx objects to Denial of Service attacks in which an attacker sends messages intending to be rejected with a large list of additional certificates repeatedly, forcing the server to store them indefinitely. The issue was fixed by removing the added extra certs if the message is rejected, using the same method as when the context is configured to not do caching at all. FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE.
osv:UBUNTU-CVE-2026-63074
nodejs
Fixed versions: Not specified
nodejs
Fixed versions: Not specified
openssl
Fixed versions: 3.0.2-0ubuntu1.29
openssl
Fixed versions: Not specified
openssl-fips
Fixed versions: Not specified
openssl
Fixed versions: 3.0.2-0ubuntu1.29+Fips1
openssl-fips
Fixed versions: Not specified
edk2
Fixed versions: Not specified
openssl
Fixed versions: 3.0.13-0ubuntu3.15
openssl-fips
Fixed versions: 3.0.13-0ubuntu3.15+Fips1
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: 3.5.5-1ubuntu3.4
Complete source record
{
"id": "d0a8fbe040549fffa8660fa3d9b519e40ec41a6b4d2441c673be5fc3458ea70b",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-63074",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-63074",
"summary": "Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid). If a server reuses an OSSL_CMP_CTX frequently, this cache of extraCerts may grow unboundedly, and a malicious client may flood a CMP server with requests driving this growth. Impact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX for the lifetime of a server process may observe unbounded memory growth in the event a malicious client repeatedly sends requests containing unique extra certificates, which may lead to OOM conditions. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: If a remote user sends CMP messages to a server with a list of extraCerts and the message is rejected, the extraCerts from the message remains in the server contexts untrusted certificate stack. This exposes servers with long lived ctx objects to Denial of Service attacks in which an attacker sends messages intending to be rejected with a large list of additional certificates repeatedly, forcing the server to store them indefinitely. The issue was fixed by removing the added extra certs if the message is rejected, using the same method as when the context is configured to not do caching at all. FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE.",
"evidence": "osv:UBUNTU-CVE-2026-63074",
"products": [
{
"name": {
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"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.10.25~dfsg2-2ubuntu1",
"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
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{
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{
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"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
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{
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"evidence": "/affected/0/versions"
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{
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{
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{
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{
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{
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{
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{
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{
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"evidence": "/affected/1/versions"
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{
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"evidence": "/affected/1/versions"
},
{
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"evidence": "/affected/1/versions"
},
{
"value": "8.10.0~dfsg-2ubuntu0.4+esm4",
"evidence": "/affected/1/versions"
},
{
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"evidence": "/affected/1/versions"
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{
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},
{
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],
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{
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"evidence": "/affected/2/versions"
},
{
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"evidence": "/affected/2/versions"
},
{
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"evidence": "/affected/2/versions"
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{
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"evidence": "/affected/2/versions"
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{
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{
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{
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},
{
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{
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{
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{
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{
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"evidence": "/affected/2/versions"
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{
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"evidence": "/affected/2/versions"
},
{
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"evidence": "/affected/2/versions"
},
{
"value": "3.0.2-0ubuntu1.13",
"evidence": "/affected/2/versions"
},
{
"value": "3.0.2-0ubuntu1.14",
"evidence": "/affected/2/versions"
},
{
"value": "3.0.2-0ubuntu1.15",
"evidence": "/affected/2/versions"
},
{
"value": "3.0.2-0ubuntu1.16",
"evidence": "/affected/2/versions"
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{
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{
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{
"value": "3.0.2-0ubuntu1.19",
"evidence": "/affected/2/versions"
},
{
"value": "3.0.2-0ubuntu1.20",
"evidence": "/affected/2/versions"
},
{
"value": "3.0.2-0ubuntu1.21",
"evidence": "/affected/2/versions"
},
{
"value": "3.0.2-0ubuntu1.23",
"evidence": "/affected/2/versions"
},
{
"value": "3.0.2-0ubuntu1.25",
"evidence": "/affected/2/versions"
},
{
"value": "3.0.2-0ubuntu1.26",
"evidence": "/affected/2/versions"
}
]
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{
"name": {
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{
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{
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}
]
},
{
"name": {
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"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
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},
{
"name": {
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"affected_versions": [
{
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{
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{
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{
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{
"value": "3.0.2-0ubuntu1.16+Fips1",
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},
{
"value": "3.0.2-0ubuntu1.17+Fips1",
"evidence": "/affected/5/versions"
},
{
"value": "3.0.2-0ubuntu1.18+Fips1",
"evidence": "/affected/5/versions"
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{
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"evidence": "/affected/5/versions"
},
{
"value": "3.0.2-0ubuntu1.20+Fips1",
"evidence": "/affected/5/versions"
},
{
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"evidence": "/affected/5/versions"
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{
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{
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{
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},
{
"name": {
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"evidence": "/affected/7/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "2023.05-2",
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},
{
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"evidence": "/affected/7/versions"
},
{
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"evidence": "/affected/7/versions"
},
{
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"evidence": "/affected/7/versions"
},
{
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{
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"evidence": "/affected/7/versions"
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{
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{
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{
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{
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"evidence": "/affected/7/versions"
},
{
"value": "2024.02-2ubuntu0.3",
"evidence": "/affected/7/versions"
},
{
"value": "2024.02-2ubuntu0.4",
"evidence": "/affected/7/versions"
},
{
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"evidence": "/affected/7/versions"
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{
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},
{
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},
{
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},
{
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},
{
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}
]
},
{
"name": {
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"evidence": "/affected/8/package/name"
},
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{
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],
"affected_versions": [
{
"value": "3.0.10-1ubuntu2",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.10-1ubuntu2.1",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.10-1ubuntu3",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.10-1ubuntu4",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu2",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu3",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu3.1",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu3.2",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu3.3",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu3.4",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu3.5",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu3.6",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu3.7",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu3.9",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu3.11",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.13-0ubuntu3.12",
"evidence": "/affected/8/versions"
}
]
},
{
"name": {
"value": "openssl-fips",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-0ubuntu3.15+Fips1",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": [
{
"value": "3.0.13-0ubuntu3+Fips1",
"evidence": "/affected/9/versions"
},
{
"value": "3.0.13-0ubuntu3.6+Fips1",
"evidence": "/affected/9/versions"
},
{
"value": "3.0.13-0ubuntu3.12+Fips1",
"evidence": "/affected/9/versions"
}
]
},
{
"name": {
"value": "edk2",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2025.11-3ubuntu7",
"evidence": "/affected/10/versions"
},
{
"value": "2025.11-3ubuntu8",
"evidence": "/affected/10/versions"
},
{
"value": "2026.05-2ubuntu1",
"evidence": "/affected/10/versions"
},
{
"value": "2026.05-2ubuntu2",
"evidence": "/affected/10/versions"
},
{
"value": "2026.05-2ubuntu3",
"evidence": "/affected/10/versions"
}
]
},
{
"name": {
"value": "edk2-hwe",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
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"modified": "2026-10-17T12:59:15.576686332Z",
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"https://ubuntu.com/security/CVE-2026-63074",
"https://www.cve.org/CVERecord?id=CVE-2026-63074",
"https://openssl-library.org/news/secadv/20260825.txt",
"https://ubuntu.com/security/notices/USN-8678-1",
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},
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"evidence": "/upstream"
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],
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"source_id": "core-osv",
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}