CVE-2026-5598
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
Bouncy Castle Has Covert Timing Channel Vulnerability
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-5598.html
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-5598
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | affected | |
| debian | bullseye | fixed | 0 |
| debian | forky | affected | |
| debian | sid | affected | |
| debian | trixie | affected | |
| sles | affected | |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.bouncycastle:bcprov-jdk15to18 | >=1.71,<1.84 | 1.84 |
| Maven | org.bouncycastle:bcprov-jdk14 | >=1.71,<1.84 | 1.84 |
| Maven | org.bouncycastle:bcprov-jdk18on | >=1.71,<1.84 | 1.84 |
References
- https://github.com/bcgit/bc-java/commit/8692e6b2b191fc4aafa32545c7a78bdb9bf110c5
- https://github.com/bcgit/bc-java/commit/94abbd56413dfdac651fd878bc60253871ef5e87
- https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905598
- https://security-tracker.debian.org/tracker/CVE-2026-5598
- https://nvd.nist.gov/vuln/detail/CVE-2026-5598
- https://github.com/bcgit/bc-java
- https://github.com/bcgit/bc-java/wiki/CVE-2026-5598
- https://www.suse.com/security/cve/CVE-2026-5598.html
CWEs
CWE-385
Verify integrity in audit chain (admin only). AS-IS.