vulnerability / NVI-00016362 / Revision 1
Cedar-Java has policy injection, type confusion, and incorrect equality comparison vulnerabilities
GitHub lists this reviewed advisory for com.cedarpolicy:cedar-java, com.cedarpolicy:cedar-java, com.cedarpolicy:cedar-java. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
8.8 high
GitHub source severity; exploitability and local consequence require separate evidence.
As of · GitHub Advisory Database
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
com.cedarpolicy:cedar-java
source listed< 2.3.6
### Summary CedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. Under certain circumstances, it could lead to incorrect equality comparisons. ### Impact **`EntityIdentifier.equals()` has inverted null/self branches** The `EntityIdentifier.equals()` method has inverted logic for null and self-reference checks, returning true for null comparisons and false for self-comparisons. This does not affect Cedar authorization decisions (computed in Rust from JSON), but could affect integrators who perform their own equality checks on entity identifiers. ### Impacted versions: < 4.9 ### Patches It has been addressed in CedarJava version 4.9 and above. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes. ### Workarounds Avoid relying on `EntityIdentifier.equals()` for security-sensitive comparisons until upgraded to version `4.9`. ### References If you have any questions or comments about this advisory, Cedar asks that you contact us directly via email to cedar-policy-security@lists.cncf.io. P
com.cedarpolicy:cedar-java
source listed>= 3.1.2, < 3.4.1
### Summary CedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. Under certain circumstances, it could lead to incorrect equality comparisons. ### Impact **`EntityIdentifier.equals()` has inverted null/self branches** The `EntityIdentifier.equals()` method has inverted logic for null and self-reference checks, returning true for null comparisons and false for self-comparisons. This does not affect Cedar authorization decisions (computed in Rust from JSON), but could affect integrators who perform their own equality checks on entity identifiers. ### Impacted versions: < 4.9 ### Patches It has been addressed in CedarJava version 4.9 and above. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes. ### Workarounds Avoid relying on `EntityIdentifier.equals()` for security-sensitive comparisons until upgraded to version `4.9`. ### References If you have any questions or comments about this advisory, Cedar asks that you contact us directly via email to cedar-policy-security@lists.cncf.io. P
com.cedarpolicy:cedar-java
source listed>= 4.0.0, < 4.9.0
### Summary CedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. Under certain circumstances, it could lead to incorrect equality comparisons. ### Impact **`EntityIdentifier.equals()` has inverted null/self branches** The `EntityIdentifier.equals()` method has inverted logic for null and self-reference checks, returning true for null comparisons and false for self-comparisons. This does not affect Cedar authorization decisions (computed in Rust from JSON), but could affect integrators who perform their own equality checks on entity identifiers. ### Impacted versions: < 4.9 ### Patches It has been addressed in CedarJava version 4.9 and above. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes. ### Workarounds Avoid relying on `EntityIdentifier.equals()` for security-sensitive comparisons until upgraded to version `4.9`. ### References If you have any questions or comments about this advisory, Cedar asks that you contact us directly via email to cedar-policy-security@lists.cncf.io. P
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.
- GHSA-4r9r-4425-74p7 ↗
GitHub Advisory Database · vendor advisory
Observed . GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.
Public revision history
Only published revisions appear here. Routine fetches do not create a material-change event.
- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.