HOMEVULNERABILITIESCVE-2021-26075
MEDIUM

CVE-2021-26075

NVD-CWE-noinfoPublished: April 15, 2021· Updated: Jun 17, 2026

4.3
CVSS v3.1

Official Description

The Jira importers plugin AttachTemporaryFile rest resource in Jira Server and Data Center before version 8.5.12, from version 8.6.0 before 8.13.4, and from version 8.14.0 before 8.15.1 allowed remote authenticated attackers to obtain the full path of the Jira application data directory via an information disclosure vulnerability in the error message when presented with an invalid filename.

NVD Source

Technical Analysis

CVE-2021-26075 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

Atlassian4 product(s)
data centerjirajira data centerjira server
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://jira.atlassian.com/browse/JRASERVER-72316
PATCHhttps://jira.atlassian.com/browse/JRASERVER-72316

All References (2)

→
https://jira.atlassian.com/browse/JRASERVER-72316Patch · Vendor Advisory
→
https://jira.atlassian.com/browse/JRASERVER-72316Patch · Vendor Advisory

Quick Facts

CVE IDCVE-2021-26075
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedApr 15, 2021

Related CVEs (NVD-CWE-noinfo)

CVE-2014-2623
10.0
CVE-2008-5010
10.0
CVE-2008-4873
10.0
CVE-2017-3623
10.0
CVE-2011-0807
10.0
CVE-2006-3698
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-26075 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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