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[GHSA-p93r-85wp-75v3] Covert timing channel vulnerability in Legion of the... #7470

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[GHSA-p93r-85wp-75v3] Covert timing channel vulnerability in Legion of the... #7470

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29 changes: 25 additions & 4 deletions advisories/unreviewed/2026/04/GHSA-p93r-85wp-75v3/GHSA-p93r-85wp-75v3.json
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Original file line number Diff line number Diff line change
@@ -1,27 +1,48 @@
{
"schema_version": "1.4.0",
"id": "GHSA-p93r-85wp-75v3",
"modified": "2026-04-17T18:31:50Z",
"modified": "2026-04-17T18:32:00Z",
"published": "2026-04-17T18:31:50Z",
"aliases": [
"CVE-2026-5598"
],
"summary": "Bouncy Castle timing attack",
"details": "Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules).\n Non-constant time comparisons risk private key leakage in FrodoKEM.\n\nThis issue affects BC-JAVA: from 2.17.3 before 1.84.",
"severity": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"
}
],
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.bouncycastle:bcprov-jdk15to18"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.8.4"
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@julianladisch julianladisch Apr 21, 2026

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Suggested change
"fixed": "1.8.4"
"fixed": "1.84"

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@marcelstoer marcelstoer Apr 21, 2026

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Oh, sorry, what a mistake. Thanks for spotting this.

}
]
}
]
}
],
"affected": [],
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5598"
},
{
"type": "WEB",
"url": "https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905998"
"url": "https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905598"
}
],
"database_specific": {
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