Unauthenticated code execution via URI namespace evaluation
Published Jun 3, 2022 · Updated Oct 21, 2025
OGNL injection in Atlassian Confluence Server and Data Center allows remote attackers to execute arbitrary code through crafted URIs. ActionChainResult passes the namespace derived from an untrusted request URI to TextParseUtil.translateVariables, which evaluates embedded expressions through OGNL. No authentication or user interaction is required; successful requests run attacker-chosen commands with the Confluence process account's privileges.
Summary
What happened
OGNL injection in Atlassian Confluence Server and Data Center allows remote attackers to execute arbitrary code through crafted URIs. ActionChainResult passes the namespace derived from an untrusted request URI to TextParseUtil.translateVariables, which evaluates embedded expressions through OGNL. No authentication or user interaction is required; successful requests run attacker-chosen commands with the Confluence process account's privileges.
The record
- CVE
- CVE-2022-26134
- Published
- Jun 3, 2022
- Updated
- Oct 21, 2025
- Vendor
- Atlassian
- Product
- Confluence Data Center
- Classifications
- CWE-917, T1059, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 2, 2022Exploitation reportedCISA Known Exploited Vulnerabilities Catalog inclusion
- Jun 3, 2022CVE publishedPublication date reported by the CVE source.
- Oct 21, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=7.13.0 <unspecified
- Affected versionversion=7.14.0 <unspecified
- Affected versionversion=7.15.0 <unspecified
- Affected versionversion=7.16.0 <unspecified
- Affected versionversion=7.17.0 <unspecified
- Affected versionversion=7.18.0 <unspecified
- Affected versionversion=next of 1.3.0 <unspecified
- Affected versionversion=unspecified <7.13.7
- Affected versionversion=unspecified <7.14.3
- Affected versionversion=unspecified <7.15.2
- Affected versionversion=unspecified <7.16.4
- Affected versionversion=unspecified <7.17.4
- Affected versionversion=unspecified <7.18.1
- Affected versionversion=unspecified <7.4.17
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
View daily counts
| Reporting day | Unique IPs |
|---|---|
| Sep 10, 2026 | Unavailable |
| Sep 11, 2026 | Unavailable |
| Sep 12, 2026 | Unavailable |
| Sep 13, 2026 | Unavailable |
| Sep 14, 2026 | 55 |
| Sep 15, 2026 | 3 |
| Sep 16, 2026 | 21 |
Weakness, pattern, technique
Public exploit references
- Confluence pre-authentication OGNL injection proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- CISA ransomware-campaign associationransomware
- Atlassian active-exploitation reportreported exploitation
- CISA Known Exploited Vulnerabilities Catalog inclusionknown exploited catalog
Technologies
Your stack
See the directory against your own environment.
Your stack
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