CVE-2026-21570

highpriority · track · 35EPSS 0.006 · 48 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.59% (48th) EPSS

CVSS 8.8 · high

Is it mine?

16 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-26

This High severity RCE (Remote Code Execution) vulnerability was introduced in versions 9.6.0, 10.0.0, 10.1.0, 10.2.0, 11.0.0, 11.1.0, 12.0.0, and 12.1.0 of Bamboo Data Center. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 8.6, allows an authenticated attacker to execute malicious code on the remote system. 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 9.6: Upgrade to a release greater than or equal to 9.6.24 Bamboo Data Center 10.2: Upgrade to a release greater than or equal to 10.2.16 Bamboo Data Center 12.1: Upgrade to a release greater than or equal to 12.1.3 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 Atlassian (Internal) program.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.1–8.8

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v4.08.6highCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.08.6highCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · security@atlassian.com

v4.06.1mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-94US

affected products (16)

Products and version ranges known to be affected.

Atlassian Bamboo Data Center <10.2.16all versionscert_bundDE
Atlassian Bamboo Data Center <12.1.3all versionscert_bundDE
Atlassian Bamboo Data Center <9.6.24all versionscert_bundDE
Atlassian Bamboo≤ Data Center <10.2.16cert_bundDE
Atlassian Bamboo≤ Data Center <12.1.3cert_bundDE
Atlassian Bamboo≤ Data Center <9.6.24cert_bundDE
Atlassian Bamboo Data Center≤ 10.2.0 to 10.2.15enisa_euvdEU
Atlassian Bamboo Data Center≤ 12.1.0 to 12.1.2enisa_euvdEU
Atlassian Bamboo Data Center≤ 10.1.0 to 10.1.1enisa_euvdEU
Atlassian Bamboo Data Center≤ 9.6.1 to 9.6.23enisa_euvdEU
Atlassian Bamboo Data Center≤ 10.0.0 to 10.0.3enisa_euvdEU
Atlassian Bamboo Data Center≤ 11.0.0 to 11.0.8enisa_euvdEU
Atlassian Bamboo Data Center≤ 12.0.0 to 12.0.2enisa_euvdEU
atlassian bamboo10.0.0 → 10.2.16nvdUScpe:2.3:a:atlassian:bamboo:*:*:*:*:*:*:*:*
atlassian bamboo11.0.0 → 12.1.3nvdUScpe:2.3:a:atlassian:bamboo:*:*:*:*:*:*:*:*
atlassian bamboo9.6.1 → 9.6.24nvdUScpe:2.3:a:atlassian:bamboo:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-0810Atlassian Bamboo Data Center: Schwachstelle ermöglicht CodeausführungDeutsch2026-03-19csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Atlassian Bamboo Data Center ausnutzen, um beliebigen Programmcode auszuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2026-03-17modified 2026-08-10

references (6)

External citations — patches, advisories, analysis.

scry

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