Description
Apache Kylin provides encryption classes PasswordPlaceholderConfigurer to help users encrypt their passwords. In the encryption algorithm used by this encryption class, the cipher is initialized with a hardcoded key and IV. If users use class PasswordPlaceholderConfigurer to encrypt their password and configure it into kylin's configuration file, there is a risk that the password may be decrypted. This issue affects Apache Kylin 2 version 2.6.6 and prior versions; Apache Kylin 3 version 3.1.2 and prior versions; Apache Kylin 4 version 4.0.0 and prior versions.
Timeline
ID reserved
By apache
- 16 days later
· 16 days later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
Apache Software Foundation · Apache Kylin
- affected Apache Kylin 2 – ≤ 2.6.6
- affected Apache Kylin 3 – ≤ 3.1.2
- affected Apache Kylin 4 – ≤ 4.0.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.apache.kylin:kylinGHSA-9fj5-jg6f-qg5r (opens in a new tab)
What to do
Workaround: Users of Kylin 2.x & Kylin 3.x should upgrade to 3.1.3 or apply patch https://github.com/apache/kylin/pull/1782. Users of Kylin 4.x should upgrade to 4.0.1 or apply patch https://github.com/apache/kylin/pull/1781. After upgrading, users can configure the value of `kylin.security.encrypt.cipher.ivSpec` in kylin.properties for encryption algorithm, and then re-encrypt the password they need to encrypt.
References (3)
- https://lists.apache.org/thread/oof215qz188k16vhlo97cm1jksxdowfy (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20220106 CVE-2021-45458: Apache Kylin: Hardcoded credentials (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20220106 CVE-2021-45458: Apache Kylin: Hardcoded credentials (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-9fj5-jg6f-qg5r (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-45458)Record last updated .