CVE-2021-21624Network attack vector

Nested-item disclosure via missing ancestor permission checks

Published Mar 18, 2021 · Updated Aug 3, 2024

Incorrect authorization in Jenkins Role-based Authorization Strategy Plugin 3.1 and earlier allows remote authenticated users to access nested items. RoleMap.AclImpl grants Item/Read on a nested item without requiring Item/Read on each parent folder. The user must already hold Item/Read on the child; the bypass exposes only that otherwise hidden item and does not grant parent-folder access.

CVSS severity4.3
Medium
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Jenkins Role-based Authorization Strategy Plugin 3.1 and earlier allows remote authenticated users to access nested items. RoleMap.AclImpl grants Item/Read on a nested item without requiring Item/Read on each parent folder. The user must already hold Item/Read on the child; the bypass exposes only that otherwise hidden item and does not grant parent-folder access.

The record

CVE
CVE-2021-21624
Published
Mar 18, 2021
Updated
Aug 3, 2024
Vendor
Jenkins Project
Product
Jenkins Role-based Authorization Strategy Plugin
Classifications
CWE-863
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 18, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · Jenkins Role-based Authorization Strategy Pluginversion=unspecified <=3.1

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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