Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability

High Listed in CISA KEV

CVECVE-2021-26085

First seen2022-03-28 00:00 UTC

Disclosed2022-03-28 00:00 UTC

Last updated2026-07-15 13:30 UTC

Channel statuspending_review

Summary

Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a pre-authorization arbitrary file read vulnerability in the /s/ endpoint.

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

Atlassian:Confluence Server

Sources

CISA KEV DATABASE

Original Links

https://nvd.nist.gov/vuln/detail/CVE-2021-26085 advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog kev

Timeline

2022-03-28 kev_added CISA KEV
2026-07-15 kev_ingest CISA KEV