CVE-2020-14172: atlassian jira Deserialization of Untrusted Data
Vulnerability summary
CVE-2020-14172 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in atlassian jira. EPSS estimates a 2.50% chance of exploitation in the next 30 days, higher than 84.7% of scored vulnerabilities.
Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 3% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Timeline
- 03-07-2020PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
This issue exists to document that a security improvement in the way that Jira Server and Data Center use velocity templates has been implemented. The way in which velocity templates were used in Atlassian Jira Server and Data Center in affected versions allowed remote attackers to achieve remote code execution via insecure deserialization, if they were able to exploit a server side template injection vulnerability. The affected versions are before version 7.13.0, from version 8.0.0 before 8.5.0, and from version 8.6.0 before version 8.8.1.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
2.50%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.50% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Atlassian3 products
- jira< 7.13.0 | ≥ 8.0.0, < 8.5.0 | ≥ 8.6.0, < 8.8.1
- jira_server≥ unspecified, < 7.13.0 | ≥ 8.0.0, < unspecified | ≥ unspecified, < 8.5.0 | ≥ 8.6.0, < unspecified | ≥ unspecified, < 8.8.1
- jira software data center< 7.13.0 | ≥ 8.0.0, < 8.5.0 | ≥ 8.6.0, < 8.8.1
1 vendor · 3 products