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Attributed metadata history

REPORTPUBLIC METADATA

CVE-2026-21589: Critical unauthenticated arbitrary file access in Atlassian products

OverviewOn October 5, 2026, Atlassian published a security advisory for CVE-2026-21589, a critical arbitrary file access vulnerability affecting eight products: Bitbucket Data Center, Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center, Crowd Data Center, Crucible, and Fisheye. Atlassian assigned the vulnerability a CVSSv4 score of 9.3. An una

Reference details

Source category
Research & news
Report title
CVE-2026-21589: Critical unauthenticated arbitrary file access in Atlassian products
First reported
Oct 07, 2026 12:11 UTC
Last reported
Oct 07, 2026 12:11 UTC
Catalog updated
Oct 08, 2026 03:49 UTC
Record ID
33c1f29a964084dabfbc2c8f164ef1ec1a56d6ab54e5b2f9a3c6937b26182441

CVEs mentioned by sources

CVE-2026-21589

Published indicators

Network indicators are visibly defanged. This page does not make them clickable or send them to another service.

No validated file hashes or network indicators are stored for this record.

Source observations

src_2dcfd086714def6364

Source-provided label
Not reported
Evidence class
mentioned in report
Confidence
Not reported
Observed
Oct 07, 2026 12:11 UTC
Retrieved
Oct 08, 2026 03:49 UTC

This record contains metadata and attribution only. It does not host, download, unpack, render, or execute malware samples.

Feed collection status

Sources represented on this page. Publication and observation dates describe the content; successful batch dates describe local collection. A recent batch does not certify complete coverage or current provider availability.

1 sources: 0 stale, 0 needing attention, 0 paused, 1 unverified.

Review source update dates and status
  • src_2dcfd086714def6364Collection status unverifiedLast successful batch: Unverified

Stale means older than twice the recorded collection interval, with a minimum of one hour; without an interval, the threshold is 24 hours. Cached content remains available while a feed is stale, paused, or unverified.