CVE-2026-12802
Last modified
CVE-2026-12802 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In Bouncy Castle for Java before 1.85, CMS AuthEnvelopedData fails to enforce tag-length on decryption. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series).. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
In Bouncy Castle for Java before 1.85, CMS AuthEnvelopedData fails to enforce tag-length on decryption. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series).
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Bouncycastle | Bc-Java | < 1.85 |
| Bouncycastle | Bcpkix-Fips | < 1.0.12 |
| Bouncycastle | Bcpkix-Fips | >= 2.0.7, < 2.0.12 |
| Bouncycastle | Bcpkix-Fips | >= 2.1.8, < 2.1.12 |
| Bouncycastle | Bouncy Castle For Java Lts | <= 2.73.11 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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