CVE-2017-18113· NVD / CVE Program· CNA atlassian

The DefaultOSWorkflowConfigurator class in Jira Server and Jira Data Center before version 8.18.1 allows remote attackers who can trick a sy

The DefaultOSWorkflowConfigurator class in Jira Server and Jira Data Center before version 8.18.1 allows remote attackers who can trick a system administrator to import their malicious workflow to execute arbitrary code via a Remote Code Execution (RCE) vulnerability. The vulnerability allowed for various problematic OSWorkflow classes to be used as part of workflows. The fix for this issue blocks usage of unsafe conditions, validators, functions and registers that are build-in into OSWorkflow library and other Jira dependencies. Atlassian-made functions or functions provided by 3rd party plugins are not affected by this fix.

HighCVSS 8.8 · v3.1—No exploit No fix recorded

pre-auth RCE

Published: Aug 1, 2021
Updated: Jun 16, 2026
EPSS: 1.8% · 78th percentile
CWE: CWE-94

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Action score

Monitor

Low priority for now.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 1.8%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

Vendor	Product	CPE
atlassian	data center	cpe:2.3:a:atlassian:data_center
atlassian	jira	cpe:2.3:a:atlassian:jira

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

atlassian data centerbefore 8.18.1
atlassian jirabefore 8.18.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (atlassian). Independent of NVD's CPE analysis and usually ahead of it.

Atlassian Jira Data Center
- unspecified and later · before 8.18.1affected
Atlassian Jira Server
- unspecified and later · before 8.18.1affected

Same product

atlassian: all records

Other highest-scoring records for the same primary product.

CVE-2020-36289Affected versions of Atlassian Jira Server and Data Center allow an unauthenticated user to enumerate users via an Information Disclosure vu
51Plan
CVE-2020-14181Affected versions of Atlassian Jira Server and Data Center allow an unauthenticated user to enumerate users via an Information Disclosure vu
51Plan
CVE-2021-39113Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to continue to view cached content even after lo
31Monitor
CVE-2021-41312Affected versions of Atlassian Jira Server and Data Center allow a remote attacker who has had their access revoked from Jira Service Manage
30Monitor
CVE-2021-39123Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to impact the application's availability v
30Monitor
CVE-2021-43947Affected versions of Atlassian Jira Server and Data Center allow remote attackers with administrator privileges to execute arbitrary code vi
29Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope