vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-21584

HIGH
8.1
CVSS Score
Published: August 18, 2026 at 10:00 PM UTC
Updated: October 22, 2026 at 05:09 PM UTC
2 products affected across 1 vendorBambooBamboo Data Center

Using Bamboo Data Center by Atlassian?

Get instant alerts when new vulnerabilities affect Bamboo Data Center - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH8.1
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Bamboo· Atlassianatlassian-app
95%
10.0.0 ≤ v < 10.2.2211.0.0 ≤ v < 12.1.10
Affected range stops below 10.2.22, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.1.10, so it looks safe — our inference, not a vendor statement
Bamboo Data Center· Atlassianatlassian-app
90%
Vendor states this is fixed in 10.2.22 (unaffected)
Vendor states this is fixed in 12.1.10 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://confluence.atlassian.com/pages/viewpage.action?pageId=1821999768
Issue TrackingVendor Advisory
Source: cverecord
https://jira.atlassian.com/browse/BAM-26468

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-285

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card