keycloak-core discloses system properties
It was found that while parsing the SAML messages the StaxParserUtil class of keycloak before 2.5.1 replaces special strings for obtaining attribute values with system property. This could allow an attacker to determine values of system properties at the attacked system by formatting the SAML request ID field to be the chosen system property which could be obtained in the "InResponseTo" field in the response.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.keycloak:keycloak-core | < 2.5.1 | 2.5.1 |
References
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-200, CWE-201- Platform
- Java / Kotlin (Maven)
- Package
org.keycloak:keycloak-core- Disclosed
- 18.10.2018
- Updated
- 11.10.2026 11:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-c77r-6f64-478q - CC BY 4.0
Vulnerability history: org.keycloak:keycloak-core
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 49
- First → latest
- 10.2018 02.2025
- Without a fix
- 5
- Exploited in attacks
- 0
Severity breakdown
- Critical 3
- High 14
- Medium 31
- Low 1
Disclosures per year
- 2018: 9
- 2019: 4
- 2020: 4
- 2021: 5
- 2022: 17
- 2023: 4
- 2024: 5
- 2025: 1
- 2026: 0
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keycloak-core discloses system properties this entry
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