CVE-2021-26086
Atlassian Jira Server and Data Center: Path Traversal
As of , CVE-2021-26086 in Atlassian Jira Server and Data Center is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.
- Exploited
- Yes: CISA listed it on 12 November 2024
- US federal deadline
- 3 December 202421 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.99Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- 0.86 on 12 November 2024EPSS on the day CISA listed it.
- Public exploit
- 1 Exploit-DB entry
- Fix
- Vendor advice: jira.atlassian.comLinks below, from CISA's entry.
What CISA says to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA's required action
What the flaw is
Atlassian Jira Server and Data Center contain a path traversal vulnerability that allows a remote attacker to read particular files in the /WEB-INF/web.xml endpoint.
CISA's description
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to read particular files via a path traversal vulnerability in the /WEB-INF/web.xml endpoint. The affected versions are before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1.
The CVE record's description, from atlassian
- CVE published
- 16 August 2021
- Assigned by
- atlassian
- CVSS
- 5.3 Medium (CVSS 3.1, from CISA-ADP)
- CWE-22
- Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- yes
- CISA SSVC, technical impact
- partial
Timeline
- The CVE record was published.
- Exploit-DB published an exploit (EDB-ID 50380).
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Public exploits
Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.
- Exploit-DB: Atlassian Jira Server Data Center 8.16.0 - Arbitrary File ReadEDB-ID 50380, 6 October 2021
Jira Server and Data Center: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2019-11581Server-Side Template Injection | Atlassian Jira Server and Data Center | Patch this weekEPSS 0.85 | 0.85 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org