Medium
Security advisory
An issue was discovered in phpMyAdmin. When the user does not specify a blowfish_secret key for encrypting cookies, phpMyAdmin generates one at runtime. A vulnerability was reported where the way this value is created uses a weak algorithm. This could allow an attacker to determine the user's blowfish_secret and potentially decrypt their cookies. All 4.6.x versions (prior to 4.6.5), 4.4.x versions (prior to 4.4.15.9), and 4.0.x versions (prior to 4.0.10.18) are affected.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-9847
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:35 UTC · Revision 1
Source evidence
An issue was discovered in phpMyAdmin. When the user does not specify a blowfish_secret key for encrypting cookies, phpMyAdmin generates one at runtime. A vulnerability was reported where the way this value is created uses a weak algorithm. This could allow an attacker to determine the user's blowfish_secret and potentially decrypt their cookies. All 4.6.x versions (prior to 4.6.5), 4.4.x versions (prior to 4.4.15.9), and 4.0.x versions (prior to 4.0.10.18) are affected.
osv:CVE-2016-9847
Complete source record
{
"id": "3efd1a93b044ad253c03c5bbe5ac59432179179c74fbca97c8751c837a3716db",
"url": "https://osv.dev/vulnerability/CVE-2016-9847",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-9847",
"summary": "An issue was discovered in phpMyAdmin. When the user does not specify a blowfish_secret key for encrypting cookies, phpMyAdmin generates one at runtime. A vulnerability was reported where the way this value is created uses a weak algorithm. This could allow an attacker to determine the user's blowfish_secret and potentially decrypt their cookies. All 4.6.x versions (prior to 4.6.5), 4.4.x versions (prior to 4.4.15.9), and 4.0.x versions (prior to 4.0.10.18) are affected.",
"evidence": "osv:CVE-2016-9847",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2016-9847",
"aliases": [
"CVE-2016-9847",
"GHSA-9xhq-pm7v-693p"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/phpmyadmin/phpmyadmin",
"type": "GIT",
"events": [
{
"introduced": "37b38431d167915675fc8ab512470528147e72de"
},
{
"last_affected": "39864227e7c33f9a6ef29890017e48164df54858"
}
],
"database_specific": {
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{
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"introduced": "4.6.0"
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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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{
"introduced": "4.6.4"
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{
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{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.0:*:*:*:*:*:*:*",
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{
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{
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{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.3"
},
{
"last_affected": "4.0.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.4"
},
{
"last_affected": "4.0.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.4.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.4.1"
},
{
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"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.4.2:*:*:*:*:*:*:*",
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{
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{
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}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.5"
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{
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}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.6:*:*:*:*:*:*:*",
"range": [
{
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},
{
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],
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},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.7:*:*:*:*:*:*:*",
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{
"introduced": "4.0.7"
},
{
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],
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},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.8"
},
{
"last_affected": "4.0.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.9"
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{
"last_affected": "4.0.9"
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],
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},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10:*:*:*:*:*:*:*",
"range": [
{
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{
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{
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{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.10.2"
},
{
"last_affected": "4.0.10.2"
}
],
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},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.10.3"
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{
"last_affected": "4.0.10.3"
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{
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],
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{
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},
{
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{
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},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.8:*:*:*:*:*:*:*",
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{
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"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.10.9:*:*:*:*:*:*:*",
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{
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{
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{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.4:*:*:*:*:*:*:*",
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],
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{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.5:*:*:*:*:*:*:*",
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],
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{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.6:*:*:*:*:*:*:*",
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{
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{
"last_affected": "4.4.6"
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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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{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.8:*:*:*:*:*:*:*",
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{
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],
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{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.9:*:*:*:*:*:*:*",
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{
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],
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{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.10:*:*:*:*:*:*:*",
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"introduced": "4.4.10"
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],
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{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.11:*:*:*:*:*:*:*",
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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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],
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},
{
"last_affected": "4.4.15"
}
],
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},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.1:*:*:*:*:*:*:*",
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{
"introduced": "4.4.15.1"
},
{
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}
],
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},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.4.15.2"
},
{
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}
],
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},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.4.15.3"
},
{
"last_affected": "4.4.15.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.4:*:*:*:*:*:*:*",
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{
"introduced": "4.4.15.4"
},
{
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}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.4.15.5"
},
{
"last_affected": "4.4.15.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.4.15.6"
},
{
"last_affected": "4.4.15.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.4.15.7"
},
{
"last_affected": "4.4.15.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:phpmyadmin:phpmyadmin:4.4.15.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.4.15.8"
},
{
"last_affected": "4.4.15.8"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"4.0.0",
"4.0.1",
"4.0.10",
"4.0.10.1",
"4.0.10.10",
"4.0.10.11",
"4.0.10.12",
"4.0.10.13",
"4.0.10.14",
"4.0.10.15",
"4.0.10.16",
"4.0.10.17",
"4.0.10.2",
"4.0.10.3",
"4.0.10.4",
"4.0.10.5",
"4.0.10.6",
"4.0.10.7",
"4.0.10.8",
"4.0.10.9",
"4.0.2",
"4.0.3",
"4.0.4",
"4.0.4.1",
"4.0.4.2",
"4.0.5",
"4.0.6",
"4.0.7",
"4.0.8",
"4.0.9",
"4.4.0",
"4.4.1",
"4.4.1.1",
"4.4.10",
"4.4.11",
"4.4.12",
"4.4.13",
"4.4.13.1",
"4.4.14",
"4.4.14.1",
"4.4.15",
"4.4.15.1",
"4.4.15.2",
"4.4.15.3",
"4.4.15.4",
"4.4.15.5",
"4.4.15.6",
"4.4.15.7",
"4.4.15.8",
"4.4.2",
"4.4.3",
"4.4.4",
"4.4.5",
"4.4.6",
"4.4.6.1",
"4.4.7",
"4.4.8",
"4.4.9",
"4.6.0",
"4.6.1",
"4.6.2",
"4.6.3",
"4.6.4"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-9847.json"
}
}
],
"modified": "2026-10-24T10:30:55.402454261Z",
"provider": "osv",
"references": [
"https://security.gentoo.org/glsa/201701-32",
"https://www.phpmyadmin.net/security/PMASA-2016-58"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2016-9847",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 438406,
"published_at": "2016-12-11T02:59:44.553+00:00"
}