### Summary CedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. Under certain circumstances, improper input handling could allow policy injection. ### Impact **Cedar-expression injection via unescaped `toCedarExpr()`** The `toCedarExpr()` method on Cedar Value types does not escape special characters (`"` or `\`) when converting values to Cedar source code. If an integrator uses `toCedarExpr()` to build policy text at runtime from user-controlled values, an actor could inject arbitrary Cedar expressions. For example, injecting `|| true` into a `permit ... when { ... }` clause could make the permit unconditional, or injecting `&& false` into a `forbid` clause could prevent the `forbid` from triggering. This issue requires the integrator to use `toCedarExpr()` to build policy text at runtime from user-controlled input. ### Impacted versions: < 4.9 ### Patches Addressed in CedarJava version 2.3.6, 3.4.1, and 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 Validate and sanitize all user-supplied input before passing it to `toCedarExpr()`. Avoid building policy text at runtime from user-controlled values. ### References If you have any questions or comments about this advisory, we ask that you contact us directly via email to [[email protected]](mailto:[email protected]). Please do not create a public GitHub issue.
### Summary CedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. Under certain circumstances, improper input handling could allow policy injection. ### Impact **Cedar-expression injection via unescaped `toCedarExpr()`** The `toCedarExpr()` method on Cedar Value types does not escape special characters (`"` or `\`) when converting values to Cedar source code. If an integrator uses `toCedarExpr()` to build policy text at runtime from user-controlled values, an actor could inject arbitrary Cedar expressions. For example, injecting `|| true` into a `permit ... when { ... }` clause could make the permit unconditional, or injecting `&& false` into a `forbid` clause could prevent the `forbid` from triggering. This issue requires the integrator to use `toCedarExpr()` to build policy text at runtime from user-controlled input. ### Impacted versions: < 4.9 ### Patches Addressed in CedarJava version 2.3.6, 3.4.1, and 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 Validate and sanitize all user-supplied input before passing it to `toCedarExpr()`. Avoid building policy text at runtime from user-controlled values. ### References If you have any questions or comments about this advisory, we ask that you contact us directly via email to [[email protected]](mailto:[email protected]). Please do not create a public GitHub issue.
Update com.cedarpolicy:cedar-java to 2.3.6; com.cedarpolicy:cedar-java to 3.4.1; com.cedarpolicy:cedar-java to 4.9.0 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanCedarJava has policy injection vulnerability affects com.cedarpolicy:cedar-java (maven), com.cedarpolicy:cedar-java (maven), com.cedarpolicy:cedar-java (maven). Severity is high. ### Summary CedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. Under certain circumstances, improper input handling could allow policy injection. ### Impact **Cedar-expression injection via unescaped `toCedarExpr()`** The `toCedarExpr()` method on Cedar Value types does not escape special characters (`"` or `\`) when converting values to Cedar source code. If an integrator uses `toCedarExpr()` to build policy text at runtime from user-controlled values, an actor could inject arbitrary Cedar expressions. For example, injecting `|| true` into a `permit ... when { ... }` clause could make the permit unconditional, or injecting `&& false` into a `forbid` clause could prevent the `forbid` from triggering. This issue requires the integrator to use `toCedarExpr()` to build policy text at runtime from user-controlled input. ### Impacted versions: < 4.9 ### Patches Addressed in CedarJava version 2.3.6, 3.4.1, and 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 Validate and sanitize all user-supplied input before passing it to `toCedarExpr()`. Avoid building policy text at runtime from user-controlled values. ### References If you have any questions or comments about this advisory, we ask that you contact us directly via email to [[email protected]](mailto:[email protected]). Please do not create a public GitHub issue.
AI coding agents often install or upgrade packages automatically in maven. A high vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| com.cedarpolicy:cedar-javamaven | <2.3.6 | 2.3.6 |
| com.cedarpolicy:cedar-javamaven | >=3.1.2,<3.4.1 | 3.4.1 |
| com.cedarpolicy:cedar-javamaven | >=4.0.0,<4.9.0 | 4.9.0 |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL GuardUpdate com.cedarpolicy:cedar-java to 2.3.6; com.cedarpolicy:cedar-java to 3.4.1; com.cedarpolicy:cedar-java to 4.9.0 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanCedarJava has policy injection vulnerability affects com.cedarpolicy:cedar-java (maven), com.cedarpolicy:cedar-java (maven), com.cedarpolicy:cedar-java (maven). Severity is high. ### Summary CedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. Under certain circumstances, improper input handling could allow policy injection. ### Impact **Cedar-expression injection via unescaped `toCedarExpr()`** The `toCedarExpr()` method on Cedar Value types does not escape special characters (`"` or `\`) when converting values to Cedar source code. If an integrator uses `toCedarExpr()` to build policy text at runtime from user-controlled values, an actor could inject arbitrary Cedar expressions. For example, injecting `|| true` into a `permit ... when { ... }` clause could make the permit unconditional, or injecting `&& false` into a `forbid` clause could prevent the `forbid` from triggering. This issue requires the integrator to use `toCedarExpr()` to build policy text at runtime from user-controlled input. ### Impacted versions: < 4.9 ### Patches Addressed in CedarJava version 2.3.6, 3.4.1, and 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 Validate and sanitize all user-supplied input before passing it to `toCedarExpr()`. Avoid building policy text at runtime from user-controlled values. ### References If you have any questions or comments about this advisory, we ask that you contact us directly via email to [[email protected]](mailto:[email protected]). Please do not create a public GitHub issue.
AI coding agents often install or upgrade packages automatically in maven. A high vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| com.cedarpolicy:cedar-javamaven | <2.3.6 | 2.3.6 |
| com.cedarpolicy:cedar-javamaven | >=3.1.2,<3.4.1 | 3.4.1 |
| com.cedarpolicy:cedar-javamaven | >=4.0.0,<4.9.0 | 4.9.0 |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard