Medium
Security advisory
In Botan 1.11.29 through 1.11.32, RSA decryption with certain padding options had a detectable timing channel which could given sufficient queries be used to recover plaintext, aka an "OAEP side channel" attack.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-8871
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 08:17 UTC · Revision 1
Source evidence
In Botan 1.11.29 through 1.11.32, RSA decryption with certain padding options had a detectable timing channel which could given sufficient queries be used to recover plaintext, aka an "OAEP side channel" attack.
osv:CVE-2016-8871
Complete source record
{
"id": "49da3c7a1ff2b3ba217511cdcbd2ac8766056df38eb0fc768e73af3fc36d6dbe",
"url": "https://osv.dev/vulnerability/CVE-2016-8871",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-8871",
"summary": "In Botan 1.11.29 through 1.11.32, RSA decryption with certain padding options had a detectable timing channel which could given sufficient queries be used to recover plaintext, aka an \"OAEP side channel\" attack.",
"evidence": "osv:CVE-2016-8871",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2016-8871",
"aliases": [
"CVE-2016-8871"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/randombit/botan",
"type": "GIT",
"events": [
{
"introduced": "67a756ac2bef809be53ccdce7773682547c857eb"
},
{
"last_affected": "c83872bb775916d88196fb2eca6971329711e2d3"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:botan_project:botan:1.11.29:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.11.29"
},
{
"last_affected": "1.11.29"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:botan_project:botan:1.11.30:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.11.30"
},
{
"last_affected": "1.11.30"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:botan_project:botan:1.11.31:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.11.31"
},
{
"last_affected": "1.11.31"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:botan_project:botan:1.11.32:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.11.32"
},
{
"last_affected": "1.11.32"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"1.11.29",
"1.11.30",
"1.11.31",
"1.11.32"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-8871.json"
}
}
],
"modified": "2026-10-24T10:31:05.390328088Z",
"provider": "osv",
"references": [
"https://botan.randombit.net/security.html"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2016-8871",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 440746,
"published_at": "2016-10-28T15:59:15.47+00:00"
}