CVE-2021-45458Hardcoded credentials
- 7.5HighCVSS base score
- 2.1%Exploitation in 30 daysEPSS · top 18% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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 (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
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
References3
- 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)
- EUVD EUVD-2022-0544 (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://cveledger.app/cve/CVE-2021-45458)Record last updated .