CVE-2026-55771

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Source

https://cve.org/CVERecord?id=CVE-2026-55771

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55771.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-55771

Aliases

GHSA-4r9r-4425-74p7

Published

2026-07-13T19:28:00Z

Modified

2026-08-12T03:51:18Z

Severity

8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

CedarJava has policy injection, type confusion, and incorrect equality comparison vulnerabilities

Details

CedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. In versions prior to 4.9.0, the EntityIdentifier.equals() has inverted null/self branches which could lead to incorrect equality comparisons. 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. This issue has been fixed in version 4.9.0.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-697",
        "CWE-843",
        "CWE-94"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55771.json"
}

References

Affected packages

Git / github.com/cedar-policy/cedar-java

Affected ranges

Type

GIT

Repo

https://github.com/cedar-policy/cedar-java

Events

Introduced

Fixed

6dd91c6c273a9bd55d927280d71e13fec9ccaf33

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.9.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v4.*

v4.2.2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55771.json"