CVEvulnerability

CVE-2021-21639

4.3 MEDIUM Published 2021-04-07 Modified 2026-06-17 Official page ↗

Status: Modified
Published: 2021-04-07
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS 2.0 ([email protected]): 4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:P/A:N

Description

Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not validate the type of object created after loading the data submitted to the `config.xml` REST API endpoint of a node, allowing attackers with Computer/Configure permission to replace a node with one of a different type.

Affected configurations

• jenkins jenkins (<= 2.277.1) • jenkins jenkins (<= 2.286)

References

http://www.openwall.com/lists/oss-security/2021/04/07/2 Mailing List, Third Party Advisory
https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1721 Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/04/07/2 Mailing List, Third Party Advisory
https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1721 Vendor Advisory