VDB
CVE-2026-42521
CVE-2026-42521
PUBLISHED
CVSS 8.699999809265137 HIGH
Jenkins Matrix Authorization Strategy Plugin 2.0-beta-1 through 3.2.9 (both inclusive) invokes parameterless constructors of classes specified in configuration when deserializing inheritance strategies, without restricting the classes that can be instantiated, allowing attackers with Item/Configure permission to instantiate arbitrary types, which may lead to information disclosure or other impacts depending on the classes available on the classpath.
EPSS 0.09% · 24.7th percentile
Risk Scores
CVSS v4.0
8.699999809265137
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS Score
0.09%
24.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Jenkins Project | Jenkins Matrix Authorization Strategy Plugin | 2.0-beta-1 |
Timeline
- CVE Published
- Apr 29, 2026 PoC Published
- May 7, 2026 Security Advisory
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score
- May 26, 2026 EPSS Score
References
- Jenkins Security Advisory 2026-04-29 vendor-advisory