Possible DOS in processing large name constraint structures in PKIXCertPathReveiwer
Priority LOW 35CWE-770Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Partial Red Hat: 24 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-770.
Summary
Allocation of Resources Without Limits or Throttling vulnerability in Legion of the Bouncy Castle Inc. BC Java bcpkix on All (API modules), Legion of the Bouncy Castle Inc. BC Java bcprov on All (API modules), Legion of the Bouncy Castle Inc. BCPKIX FIPS bcpkix-fips on All (API modules) allows Excessive Allocation. This vulnerability is associated with program files https://github.Com/bcgit/bc-java/blob/main/pkix/src/main/java/org/bouncycastle/pkix/jcajce/PKIXCertPathReviewer.Java, https://github.Com/bcgit/bc-java/blob/main/prov/src/main/java/org/bouncycastle/x509/PKIXCertPathReviewer.Java. This issue affects BC Java: from 1.44 through 1.78; BC Java: from 1.44 through 1.78; BCPKIX FIPS: from 1.0.0 through 1.0.7, from 2.0.0 through 2.0.7.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00498 42nd percentileScored 2026-11-07
Fix Partial org.bouncycastle:bcpkix-jdk15on (Maven): 1.79org.bouncycastle:bcpkix-jdk15to18 (Maven): 1.79+2 more productsRed Hat: 24 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Legion of the Bouncy Castle Inc. | BC Java | 1.44 – 1.78 | — | No fix listed | CNA |
| Legion of the Bouncy Castle Inc. | BC Java | 1.44 – 1.78 | — | No fix listed | CNA |
| Legion of the Bouncy Castle Inc. | BCPKIX FIPS | 1.0.0 – 1.0.7; 2.0.0 – 2.0.7 | — | No fix listed | CNA |
| — | org.bouncycastle:bcpkix-jdk15on (Maven) | 1.44 to before 1.79 | 1.79 | Patch available | GHSA-4cx2-fc23-5wg6 |
| — | org.bouncycastle:bcpkix-jdk15to18 (Maven) | 1.44 to before 1.79 | 1.79 | Patch available | GHSA-4cx2-fc23-5wg6 |
| — | org.bouncycastle:bcpkix-jdk18on (Maven) | 1.44 to before 1.79 | 1.79 | Patch available | GHSA-4cx2-fc23-5wg6 |
| — | org.bouncycastle:bcpkix-fips (Maven) | 1.0.0 to before 1.0.8 | 1.0.8 | Patch available | GHSA-4cx2-fc23-5wg6 |
| — | org.bouncycastle:bcpkix-fips (Maven) | 2.0.0 to before 2.0.8 | 2.0.8 | Patch available | GHSA-4cx2-fc23-5wg6 |
- BC Java VendorLegion of the Bouncy Castle Inc. Affected 1.44 – 1.78 Fixed in — No fix listed CNA
- BC Java VendorLegion of the Bouncy Castle Inc. Affected 1.44 – 1.78 Fixed in — No fix listed CNA
- BCPKIX FIPS VendorLegion of the Bouncy Castle Inc. Affected 1.0.0 – 1.0.7; 2.0.0 – 2.0.7 Fixed in — No fix listed CNA
- org.bouncycastle:bcpkix-jdk15on (Maven) Vendor— Affected 1.44 to before 1.79 Fixed in 1.79 Patch available GHSA-4cx2-fc23-5wg6
- org.bouncycastle:bcpkix-jdk15to18 (Maven) Vendor— Affected 1.44 to before 1.79 Fixed in 1.79 Patch available GHSA-4cx2-fc23-5wg6
- org.bouncycastle:bcpkix-jdk18on (Maven) Vendor— Affected 1.44 to before 1.79 Fixed in 1.79 Patch available GHSA-4cx2-fc23-5wg6
- org.bouncycastle:bcpkix-fips (Maven) Vendor— Affected 1.0.0 to before 1.0.8 Fixed in 1.0.8 Patch available GHSA-4cx2-fc23-5wg6
- org.bouncycastle:bcpkix-fips (Maven) Vendor— Affected 2.0.0 to before 2.0.8 Fixed in 2.0.8 Patch available GHSA-4cx2-fc23-5wg6
Remediation
- Fix · GHSA-4cx2-fc23-5wg6 org.bouncycastle:bcpkix-jdk15on (Maven) Fixed in 1.79 Advisory →
- Fix · GHSA-4cx2-fc23-5wg6 org.bouncycastle:bcpkix-jdk15to18 (Maven) Fixed in 1.79 Advisory →
- Fix · GHSA-4cx2-fc23-5wg6 org.bouncycastle:bcpkix-jdk18on (Maven) Fixed in 1.79 Advisory →
- Fix · GHSA-4cx2-fc23-5wg6 org.bouncycastle:bcpkix-fips (Maven) Fixed in 1.0.8 Advisory →
- Fix · GHSA-4cx2-fc23-5wg6 org.bouncycastle:bcpkix-fips (Maven) Fixed in 2.0.8 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Cryostat 4 | Affected | No fix yet: Fix deferred |
| Logging Subsystem for Red Hat OpenShift | Affected | No fix yet: Fix deferred |
| Red Hat AMQ Broker 7 | Affected | No fix yet: Fix deferred |
| Red Hat AMQ Clients | Affected | No fix yet: Fix deferred |
| Red Hat Data Grid 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat Fuse 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 8 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform Expansion Pack | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift AI (RHOAI) | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Dev Spaces | Affected | No fix yet: Fix deferred |
| Red Hat Process Automation 7 | Affected | No fix yet: Fix deferred |
| Red Hat Satellite 6 | Affected | No fix yet: Fix deferred |
| Red Hat Single Sign-On 7 | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel 4 for Quarkus 3 | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel for Spring Boot 4 | Affected | No fix yet: Fix deferred |
| Red Hat build of Apicurio Registry 3 | Affected | No fix yet: Fix deferred |
| Red Hat build of Debezium 2 | Affected | No fix yet: Fix deferred |
| Red Hat build of Debezium 3 | Affected | No fix yet: Fix deferred |
| Red Hat build of Quarkus | Affected | No fix yet: Fix deferred |
| streams for Apache Kafka 2 | Affected | No fix yet: Fix deferred |
| streams for Apache Kafka 3 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-8916
- 2026-10-03 Alias added: GHSA-4cx2-fc23-5wg6
References
Other 5
- https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902025%E2%80%908916
- https://github.com/bcgit/bc-java/commit/310b30a4fbf36d13f6cc201ffa7771715641e67e
- https://github.com/bcgit/bc-java/commit/ff444a479942d88de64004dc82c3ee32a9e9075a
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://github.com/bcgit/bc-java
More Legion of the Bouncy Castle Inc. vulnerabilities
- TI-2018-15967 Legion of the Bouncy Castle Legion of the Bouncy Castle Java Cryptography APIs 1.58 up to… CVSS 3.1CRITICAL 9.8
- TI-2017-09736 BouncyCastle JCE TLS Bleichenbacher/ROBOT CVSS 3.0HIGH 7.5
- TI-2026-42545 MTI/A0 DH agreement exponentiates unvalidated peer value CVSS 4.0CRITICAL 9.3
- TI-2026-42533 JSSE hostname verifier CN-fallback enabled by default despite documented opt-in CVSS 4.0CRITICAL 9.3
- TI-2026-41816 Stapled OCSP response accepted without binding to the checked certificate CVSS 4.0CRITICAL 9.3
- TI-2026-07701 Name Constraints bypass via trailing dot in rfc822Name and URI CVSS 4.0CRITICAL 9.3
Sources
- CVE-2025-8916 · CVE Program
- CVE-2025-8916 · NVD
- FIRST EPSS
- GHSA-4cx2-fc23-5wg6 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-8916 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences