How severe is CVE-2020-13929?

CVE-2020-13929 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-13929 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13929?

CVE-2020-13929 affects Apache Zeppelin. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-13929?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-13929 published?

CVE-2020-13929 was published on 2021-09-02 and last updated on 2026-06-17.

CVE-2020-13929

CVE-2020-13929 is a high-severity vulnerability in Apache Zeppelin with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apache Zeppelin
Published: 2021-09-02
Last modified: 2026-06-17

Description

Authentication bypass vulnerability in Apache Zeppelin allows an attacker to bypass Zeppelin authentication mechanism to act as another user. This issue affects Apache Zeppelin Apache Zeppelin version 0.9.0 and prior versions.

Frequently asked questions

What is CVE-2020-13929?: Authentication bypass vulnerability in Apache Zeppelin allows an attacker to bypass Zeppelin authentication mechanism to act as another user. This issue affects Apache Zeppelin Apache Zeppelin version 0.9.0 and prior versions.
How severe is CVE-2020-13929?: CVE-2020-13929 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-13929 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13929?: CVE-2020-13929 affects Apache Zeppelin. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-13929?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-13929 published?: CVE-2020-13929 was published on 2021-09-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:zeppelin:*:*:*:*:*:*:*:*

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