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CVE Watch—

CVE-2021-26085

Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability

CVSS

—

No CVSS

EPSS

99.9%

p100

KEV

YES

Mar 28, 2022

Exploit Today

80

0-100

Published: — · Last modified: —

EPSS · 30d
99.9%EPSS · 30 days99.9%
2026-08-022026-08-30
KEV catalog record

Product

Atlassian / Confluence Server

Vulnerability

Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability

Added to KEV

Mar 28, 2022

Remediate by

Apr 18, 2022

Known ransomware use

Yes

Summary description

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.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2021-26085

Related CVEs

No related CVEs by CWE or product.