CVEvulnerability

CVE-2022-26134

9.8 CRITICAL Known exploited Published 2022-06-03 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability — Atlassian Confluence Server/Data Center

Atlassian Confluence Server and Data Center contain a remote code execution vulnerability that allows for an unauthenticated attacker to perform remote code execution.

Added to KEV
2022-06-02
Remediation due
2022-06-06
Ransomware use
Known
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.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2022-26134
Status
Analyzed
Published
2022-06-03
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-917

Description

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 configurations

• atlassian confluence data center (>= 1.3 < 7.4.17) • atlassian confluence data center (>= 7.13.0 < 7.13.7) • atlassian confluence data center (>= 7.14.0 < 7.14.3) • atlassian confluence data center (>= 7.15.0 < 7.15.2) • atlassian confluence data center (>= 7.16.0 < 7.16.4) • atlassian confluence data center (>= 7.17.0 < 7.17.4) • atlassian confluence data center 7.18.0 • atlassian confluence server (>= 1.3 < 7.4.17) • atlassian confluence server (>= 7.13.0 < 7.13.7) • atlassian confluence server (>= 7.14.0 < 7.14.3) • atlassian confluence server (>= 7.15.0 < 7.15.2) • atlassian confluence server (>= 7.16.0 < 7.16.4) • atlassian confluence server (>= 7.17.0 < 7.17.4) • atlassian confluence server 7.18.0

Related

Weakness · CWE (1)

  • CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement weakness

References