CVE-2026-5598

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-5598
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-5598.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-5598
Downstream
Related
Published
2026-04-15T09:05:56.277Z
Modified
2026-05-01T18:44:38.725494910Z
Severity
  • 8.9 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/S:P/AU:Y/U:Red CVSS Calculator
Summary
Non-constant time comparisons risk private key leakage in FrodoKEM.
Details

Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). This vulnerability is associated with program files FrodoEngine.Java.

This issue affects BC-JAVA: from 1.71 before 1.84.

Database specific 
{
    "cwe_ids": [
        "CWE-385"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5598.json",
    "cna_assigner": "bcorg"
}
References

Affected packages

Git / github.com/bcgit/bc-java

Affected ranges

Type
GIT
Repo
https://github.com/bcgit/bc-java
Events
Introduced
1349bb03cff0b0023ef3247690410441f33b05b0
Fixed
d716d7716a452bad283323aefd88ff21eba8deef
Database specific 
{
    "extracted_events": [
        {
            "introduced": "1.71"
        },
        {
            "fixed": "1.84"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-5598.json"