November 13, 2026 Follow Egret
CVE-2022-26134 · CVE record: PUBLISHED

Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability

Atlassian Confluence Data Center, Atlassian Confluence Server

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.

Exploitation evidence

Known exploited · CISA KEV listed

Added 2022-06-02. Ransomware campaign use: Known.

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.

CISA due date: 2022-06-06. This is the catalog’s deadline, not an assessment of your organization’s exposure.

KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗

Reported products and versions

Atlassian / Confluence Data Center

Default status: Not specified

  • affected: next of 1.3.0 to < unspecified (custom)
  • affected: unspecified to < 7.4.17 (custom)
  • affected: 7.13.0 to < unspecified (custom)
  • affected: unspecified to < 7.13.7 (custom)
  • affected: 7.14.0 to < unspecified (custom)
  • affected: unspecified to < 7.14.3 (custom)
  • affected: 7.15.0 to < unspecified (custom)
  • affected: unspecified to < 7.15.2 (custom)
  • affected: 7.16.0 to < unspecified (custom)
  • affected: unspecified to < 7.16.4 (custom)
  • affected: 7.17.0 to < unspecified (custom)
  • affected: unspecified to < 7.17.4 (custom)
  • affected: 7.18.0 to < unspecified (custom)
  • affected: unspecified to < 7.18.1 (custom)

Atlassian / Confluence Server

Default status: Not specified

  • affected: next of 1.3.0 to < unspecified (custom)
  • affected: unspecified to < 7.4.17 (custom)
  • affected: 7.13.0 to < unspecified (custom)
  • affected: unspecified to < 7.13.7 (custom)
  • affected: 7.14.0 to < unspecified (custom)
  • affected: unspecified to < 7.14.3 (custom)
  • affected: 7.15.0 to < unspecified (custom)
  • affected: unspecified to < 7.15.2 (custom)
  • affected: 7.16.0 to < unspecified (custom)
  • affected: unspecified to < 7.16.4 (custom)
  • affected: 7.17.0 to < unspecified (custom)
  • affected: unspecified to < 7.17.4 (custom)
  • affected: 7.18.0 to < unspecified (custom)
  • affected: unspecified to < 7.18.1 (custom)

Fixes and workarounds

No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.

Sources and related reporting

CVE Program record ↗ · Download tracked evidence as JSON

Observed change timeline

History begins when Egret first downloads each source. It is not the complete upstream CVE history.

12 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-12",
  "epss": 0.99999,
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10 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-10",
  "epss": 0.99999,
  "percentile": 0.99994
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09 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-09",
  "epss": 0.99999,
  "percentile": 0.99994
}
08 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-08",
  "epss": 0.99999,
  "percentile": 0.99994
}
07 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-07",
  "epss": 0.99999,
  "percentile": 0.99994
}
06 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-06",
  "epss": 0.99999,
  "percentile": 0.99994
}
06 Nov 2026, 06:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-05",
  "epss": 0.99999,
  "percentile": 0.99994
}
05 Nov 2026, 06:20 Jerusalem · CVE Program record changed

Stored CNA snapshot at this observation.

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04 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

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03 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

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03 Nov 2026, 02:22 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

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03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed

Stored KEV snapshot at this observation.

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  "product": "Confluence Server/Data Center",
  "requiredAction": "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.",
  "shortDescription": "Atlassian Confluence Server and Data Center contain a remote code execution vulnerability that allows for an unauthenticated attacker to perform remote code execution.",
  "vendorProject": "Atlassian",
  "vulnerabilityName": "Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability"
}
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