Is CVE-2021-26081 in the CISA KEV catalog?

No. CVE-2021-26081 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-26081?

CVE-2021-26081 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2021-26081?

CVE-2021-26081 has an EPSS score of 1.18% (64th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-26081?

Upgrade Jira Software Long Term Support to 8.5.14 or later.

CVE & CISA-KEV Catalog

CVE-2021-26081

MEDIUM

5.3

CVSS v3

NVD

Description

REST API in Atlassian Jira Server and Jira Data Center before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1 allows remote attackers to enumerate usernames via a Sensitive Data Exposure vulnerability in the `/rest/api/latest/user/avatar/temporary` endpoint.

How to fix

Remediation Available

Jira Software Long Term SupportWindows application

Affected:8.5.14Fixed in:8.5.14Atlassian

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

1.18%probability of exploitation in 30 days

64thpercentile

Moderate risk: more likely to be exploited than 64% of all known CVEs.

References

Patch1

jira.atlassian.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.