murrez/CVE-2026-21589

PoC

CVE-2026-21589 — Atlassian DC pre-auth arbitrary file read (CVSS 4.0 9.3). PoCbit PoC: atlassian-plugins-webresource ..:: traversal on /download/resources/ for Jira, Confluence, Bitbucket. check + exploit (WEB-INF/web.xml, crowd.properties). Batch JSONL, hits.txt. Not RCE. https://pocbit.org/pocs/cve-2026-21589

view exploit source poc_in_githubauthor murrezpublished 2026-10-08catalog poc_in_github

exploited CVEs (1)

Known CVEs related to this entry.

ID	severity	EPSS	exploitable	published
CVE-2026-21589US	high7.5OT critical	12.7% (96th)	KEV	2026-10-05
This is a vulnerability in Bitbucket Data Center, Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center. Crowd Data Center, Cru…

scry

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