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CISA KEV · Known exploitedCritical

CVE-2022-26134

Atlassian Confluence Server/Data Center

In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are from 1.3.0 before 7.4.17, from 7.13.0 before 7.13.7, from 7.14.0 before 7.14.3, from 7.15.0 before 7.15.2, from 7.16.0 before 7.16.4, from 7.17.0 before 7.17.4, and from 7.18.0 before 7.18.1.

CVSS
9.8
EPSS
100.0%
100.0% percentile
CISA KEV
Listed
Published
2022.06.04
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability100.0%
Technical severityCVSS 9.8

Vulnerability overview

In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are from 1.3.0 before 7.4.17, from 7.13.0 before 7.13.7, from 7.14.0 before 7.14.3, from 7.15.0 before 7.15.2, from 7.16.0 before 7.16.4, from 7.17.0 before 7.17.4, and from 7.18.0 before 7.18.1.

Affected product and versions

Product
Atlassian Confluence Server/Data Center
Affected versions
next of 1.3.0, unspecified, 7.13.0, 7.14.0, 7.15.0, 7.16.0, 7.17.0, 7.18.0, >= 1.3 < 7.4.17, >= 7.13.0 < 7.13.7, >= 7.14.0 < 7.14.3, >= 7.15.0 < 7.15.2, >= 7.16.0 < 7.16.4, >= 7.17.0 < 7.17.4
Fixed versions
7.4.17, 7.13.7, 7.14.3, 7.15.2, 7.16.4, 7.17.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Immediately block all internet traffic to and from affected products AND apply the update per vendor instructions [https://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html] OR remove the affected products by the due date on the right. Note: Once the update is successfully deployed, agencies can reassess the internet blocking rules.

Due date: 2022.06.06
  1. 1
    Identify

    Confirm that Atlassian Confluence Server/Data Center and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-917
KEV added
2022.06.02
Ransomware use
확인됨
CVE-2022-26134 — Atlassian Confluence Server/Data Center | SECUFOCUS NOW