In Bouncy Castle for Java before 1.85, BKS/UBER keystore allocates from untrusted lengths before integrity check. This issue also affects Bouncy Castle for Java LTS before 2.73.12.
CVE-2026-12185
This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 82% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.1
- EG Score
- 7.1(medium)
- EG Risk
- 32(Track)EG Risk 32/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity71% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 18%
- KEV
- Not listed
Published
August 3, 2026
Last Modified
August 4, 2026
Advisory Details (2)
Auto-updated Aug 3, 2026commit 7bbd7fe5f441 (bcgit/bc-java)
Fix landed in bcgit/bc-java commit 7bbd7fe5f441 — awaiting tagged release
https://github.com/bcgit/bc-java/commit/7bbd7fe5f44132e5b6140a2914435c12430eeb3dVendor Advisories for CVE-2026-12185(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(4 across 4 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| bouncycastle | 1.68-2 ... 1.80-3 (12 versions) | — | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| bouncycastle | 1.72-2, 1.77-1, 1.80-1, 1.80-2, 1.80-3 | — | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| bouncycastle | 1.80-3 | — | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| bouncycastle | 1.80-3 | — | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 28× in last 7d / 82× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-21 00:24 UTCEG score recompute
- 2026-08-21 00:24 UTCGHSA enrichment
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-20 12:07 UTCGHSA enrichment
- 2026-08-19 23:41 UTCEG score recompute
- 2026-08-19 23:41 UTCGHSA enrichment
- 2026-08-19 17:03 UTCEPSS rescore
- 2026-08-19 11:23 UTCGHSA enrichment
- 2026-08-18 23:07 UTCEG score recompute
- 2026-08-18 23:06 UTCGHSA enrichment
- 2026-08-18 13:48 UTCEPSS rescore
- 2026-08-18 10:49 UTCGHSA enrichment
- 2026-08-17 22:32 UTCEG score recompute
- 2026-08-17 22:32 UTCGHSA enrichment
- 2026-08-17 10:14 UTCGHSA enrichment
- 2026-08-16 21:57 UTCEG score recompute
- 2026-08-16 21:57 UTCGHSA enrichment
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 09:39 UTCEG score recompute
- 2026-08-16 09:39 UTCGHSA enrichment
- 2026-08-16 02:14 UTCEPSS rescore
- 2026-08-15 21:23 UTCGHSA enrichment
- 2026-08-15 09:06 UTCEG score recompute
- 2026-08-15 09:06 UTCGHSA enrichment
- 2026-08-15 01:30 UTCEPSS rescore
Show 57 moreShow fewer
- 2026-08-14 20:48 UTCGHSA enrichment
- 2026-08-14 08:31 UTCEG score recompute
- 2026-08-14 08:31 UTCGHSA enrichment
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-13 20:14 UTCGHSA enrichment
- 2026-08-13 07:57 UTCGHSA enrichment
- 2026-08-12 19:40 UTCEG score recompute
- 2026-08-12 19:40 UTCGHSA enrichment
- 2026-08-12 13:50 UTCEPSS rescore
- 2026-08-12 07:23 UTCGHSA enrichment
- 2026-08-11 19:06 UTCEG score recompute
- 2026-08-11 19:06 UTCGHSA enrichment
- 2026-08-11 13:42 UTCEPSS rescore
- 2026-08-11 06:40 UTCEG score recompute
- 2026-08-11 06:40 UTCGHSA enrichment
- 2026-08-10 23:59 UTCEPSS rescore
- 2026-08-10 18:23 UTCGHSA enrichment
- 2026-08-10 06:06 UTCGHSA enrichment
- 2026-08-09 17:49 UTCEG score recompute
- 2026-08-09 17:49 UTCGHSA enrichment
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-09 05:32 UTCGHSA enrichment
- 2026-08-08 17:15 UTCEG score recompute
- 2026-08-08 17:15 UTCGHSA enrichment
- 2026-08-08 16:37 UTCEPSS rescore
- 2026-08-08 04:57 UTCGHSA enrichment
- 2026-08-07 16:40 UTCEG score recompute
- 2026-08-07 16:40 UTCGHSA enrichment
- 2026-08-07 04:23 UTCGHSA enrichment
- 2026-08-06 16:06 UTCEG score recompute
- 2026-08-06 16:06 UTCGHSA enrichment
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-06 03:49 UTCEG score recompute
- 2026-08-06 03:49 UTCGHSA enrichment
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-05 15:32 UTCGHSA enrichment
- 2026-08-05 03:15 UTCEG score recompute
- 2026-08-05 03:15 UTCGHSA enrichment
- 2026-08-04 15:09 UTCEPSS rescore
- 2026-08-04 14:54 UTCEG score recompute
- 2026-08-04 14:54 UTCGHSA enrichment
- 2026-08-04 14:41 UTCEG score recompute
- 2026-08-04 14:41 UTCGHSA enrichment
- 2026-08-04 10:38 UTCEPSS rescore
- 2026-08-04 02:23 UTCEG score recompute
- 2026-08-04 02:23 UTCGHSA enrichment
- 2026-08-03 14:34 UTCEG score recompute
- 2026-08-03 14:34 UTCGHSA enrichment
- 2026-08-03 13:40 UTCEG score recompute
- 2026-08-03 13:40 UTCGHSA enrichment
- 2026-08-03 09:26 UTCEG score recompute
- 2026-08-03 09:26 UTCGHSA enrichment
- 2026-08-03 08:58 UTCEG score recompute
- 2026-08-03 08:58 UTCGHSA enrichment
- 2026-08-03 01:21 UTCEG score recompute
- 2026-08-03 01:04 UTCEG score recompute
- 2026-08-03 01:03 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-12185?
When was CVE-2026-12185 disclosed?
Is CVE-2026-12185 actively exploited?
What is the CVSS score of CVE-2026-12185?
How do I remediate CVE-2026-12185?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-12185
Is Your Infrastructure Affected by CVE-2026-12185?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.