CISA ADP Vulnrichment

Answer in brief

CVE-2026-21584 records a High severity (CVSS 7.6) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps Atlassian/Bamboo Data Center (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 18, 2026Updated Aug 20, 2026Source checked Aug 20, 2026First seen by HOL Aug 18, 2026Material review Aug 20, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.6
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 7.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Atlassian/Bamboo Data Center (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Atlassian/Bamboo Data Centergeneric	12.1.0 to 12.1.9 \|\| 12.0.0 to 12.0.2 \|\| 11.0.0 to 11.0.8 \|\| 10.2.0 to 10.2.21 \|\| 10.1.0 to 10.1.1 \|\| 10.0.0 to 10.0.3	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Atlassian/Bamboo Data Center.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 18, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 18, 2026

Sources and claim methodology

Upstream source description

This High severity Improper Authorization vulnerability was introduced in versions 10.0.0, 10.1.0, 10.2.0, 11.0.0, 12.0.0, and 12.1.0 of Bamboo Data Center. This Improper Authorization vulnerability, with a CVSS Score of 7.6, allows an authenticated attacker to gain unintended access and can lead to the exposure of resources or functionality, possibly providing attackers with sensitive information or even execute arbitrary code. Atlassian recommends that Bamboo Data Center customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions: * Bamboo Data Center 10.2: Upgrade to a release greater than or equal to 10.2.22 * Bamboo Data Center 12.1: Upgrade to a release greater than or equal to 12.1.10 See the release notes (https://confluence.atlassian.com/bambooreleases/bamboo-release-notes-1189793869.html). You can download the latest version of Bamboo Data Center from the download center (https://www.atlassian.com/software/bamboo/download-archives). This vulnerability was reported via our Penetration Testing program.

Quoted source text, attributed separately from HOL analysis.