CVE-2021-26085
Last modified
CVE-2021-26085 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. The affected versions are before version 7.4.10, and from version 7.5.0 before 7.12.3.. CISA has confirmed active exploitation in the wild. EPSS estimates a 99.94% chance of exploitation in the next 30 days.
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. The affected versions are before version 7.4.10, and from version 7.5.0 before 7.12.3.
Metrics
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Atlassian | Confluence Data Center | < 7.4.10 |
| Atlassian | Confluence Data Center | >= 7.5.0, < 7.12.3 |
| Atlassian | Confluence Server | < 7.4.10 |
| Atlassian | Confluence Server | >= 7.5.0, < 7.12.3 |
References
- https://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-File-Read.htmlExploit, Third Party Advisory, VDB Entry
- https://jira.atlassian.com/browse/CONFSERVER-67893Issue Tracking, Vendor Advisory
- https://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-File-Read.htmlExploit, Third Party Advisory, VDB Entry
- https://jira.atlassian.com/browse/CONFSERVER-67893Issue Tracking, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26085US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2021-26085?
How severe is CVE-2021-26085?
How do I fix CVE-2021-26085?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-26079The CardLayoutConfigTable component in Jira Server and Jira …6.1
- CVE-2021-26080EditworkflowScheme.jspa in Jira Server and Jira Data Center …6.1
- CVE-2021-26081REST API in Atlassian Jira Server and Jira Data Center befor…5.3
- CVE-2021-26082The XML Export in Atlassian Jira Server and Jira Data Center…5.4
- CVE-2021-26083Export HTML Report in Atlassian Jira Server and Jira Data Ce…5.4
- CVE-2021-26084In affected versions of Confluence Server and Data Center, a…9.8
- CVE-2021-26086Affected versions of Atlassian Jira Server and Data Center a…5.3
- CVE-2021-26087An improper neutralization of input during web page generati…6.1
- CVE-2021-26088An improper authentication vulnerability in FSSO Collector v…9.6
- CVE-2021-26089An improper symlink following in FortiClient for Mac 6.4.3 a…7.8
- CVE-2021-26090A missing release of memory after its effective lifetime vul…7.5
- CVE-2021-26091A use of a cryptographically weak pseudo-random number gener…7.5
Are you affected by CVE-2021-26085?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
