CVE Explorer

CVE-2026-42521

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:44230a9370eeddd97c617992e70a4d2e467851221ee53ddc64a8f3c6d0d113c9

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"Jenkins Matrix Authorization Strategy Plugin","vendor":"Jenkins Project","versions":[{"lessThanOrEqual":"3.2.9","status":"affected","version":"2.0-beta-1","versionType":"maven"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f7da452b0f73305cf85a24d8f251c643e487147b0b45f475086f8dd76a7dea13 · sha256:b8e2af3fc271848a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:f7da452b0f73305cf85a24d8f251c643e487147b0b45f475086f8dd76a7dea13 · sha256:b8e2af3fc271848a… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-502","description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:f7da452b0f73305cf85a24d8f251c643e487147b0b45f475086f8dd76a7dea13 · sha256:b8e2af3fc271848a… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"Jenkins Security Advisory 2026-04-29","tags":["vendor-advisory"],"url":"https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3676"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f7da452b0f73305cf85a24d8f251c643e487147b0b45f475086f8dd76a7dea13 · sha256:b8e2af3fc271848a… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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