How severe is CVE-2021-22136?

CVE-2021-22136 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-22136 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22136?

CVE-2021-22136 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22136?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-22136 published?

CVE-2021-22136 was published on 2021-05-13 and last updated on 2026-06-17.

CVE-2021-22136

CVE-2021-22136 is a low-severity vulnerability in Elastic Kibana with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-613.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 3.6
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Elastic Kibana
Published: 2021-05-13
Last modified: 2026-06-17

Description

In Kibana versions before 7.12.0 and 6.8.15 a flaw in the session timeout was discovered where the xpack.security.session.idleTimeout setting is not being respected. This was caused by background polling activities unintentionally extending authenticated users sessions, preventing a user session from timing out.

Frequently asked questions

What is CVE-2021-22136?: In Kibana versions before 7.12.0 and 6.8.15 a flaw in the session timeout was discovered where the xpack.security.session.idleTimeout setting is not being respected. This was caused by background polling activities unintentionally extending authenticated users sessions, preventing a user session from timing out.
How severe is CVE-2021-22136?: CVE-2021-22136 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-22136 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22136?: CVE-2021-22136 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22136?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22136 published?: CVE-2021-22136 was published on 2021-05-13 and last updated on 2026-06-17.

References

https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125

Affected products (1)

cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*

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