CVE-2021-26068 json
An endpoint in Atlassian Jira Server for Slack plugin from version 0.0.3 before version 2.0.15 allows remote attackers to execute arbitrary…
published 2021-02-18 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-12891
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.0%
- EPSS 3.0% chance of exploitation in 30 days, percentile 87%
- public exploits
- 0
- none known
Summary
An endpoint in Atlassian Jira Server for Slack plugin from version 0.0.3 before version 2.0.15 allows remote attackers to execute arbitrary code via a template injection vulnerability.
Patch / fix
- Atlassian Jira Server for Slack 2.0.15
Exploit prediction
3.01% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Affected products
- Atlassian Jira Server for Slack
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
Sources
- CVE List CVE-2021-26068
- NVD CVE-2021-26068
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.