CVE-2024-21674Network attack vector

Unauthenticated sensitive-data disclosure

Published Jan 16, 2024 · Updated Aug 29, 2024

Code injection in Atlassian Confluence Data Center and Server allows remote attackers to disclose sensitive application data without authentication. Atlassian has not published the affected component or the operation that mishandles untrusted input. Network access to an affected instance is sufficient, and the published impact is limited to confidentiality rather than data modification or service interruption.

CVSS severity7.5
High
EPSS probability1.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Atlassian Confluence Data Center and Server allows remote attackers to disclose sensitive application data without authentication. Atlassian has not published the affected component or the operation that mishandles untrusted input. Network access to an affected instance is sufficient, and the published impact is limited to confidentiality rather than data modification or service interruption.

The record

CVE
CVE-2024-21674
Published
Jan 16, 2024
Updated
Aug 29, 2024
Vendor
Atlassian
Product
Confluence Data Center
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 2024Record 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.

  1. Affected versionversion=>= 7.19.0
  2. Affected versionversion=>= 8.0.0
  3. Affected versionversion=>= 8.1.0
  4. Affected versionversion=>= 8.2.0
  5. Affected versionversion=>= 8.3.0
  6. Affected versionversion=>= 8.4.0
  7. Affected versionversion=>= 8.5.0
  8. Affected versionversion=>= 8.6.0
  9. Affected versionversion=>= 8.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Atlassian · Confluence Data Centerversion=>= 7.19.0; version=>= 8.0.0; version=>= 8.1.0; version=>= 8.2.0; version=>= 8.3.0; version=>= 8.4.0; version=>= 8.5.0; version=>= 8.6.0; version=>= 8.7.1
Atlassian · Confluence Serverversion=>= 7.19.0; version=>= 8.0.0; version=>= 8.1.0; version=>= 8.2.0; version=>= 8.3.0; version=>= 8.4.0; version=>= 8.5.0; version=>= 8.6.0; version=>= 8.7.1

Published CVSS scores

8.6AtlassianCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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