Is CVE-2026-34020 in the CISA KEV catalog?

No. CVE-2026-34020 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-34020?

CVE-2026-34020 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2026-34020?

CVE-2026-34020 has an EPSS score of 0.51% (40th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-34020?

Upgrade openmeetings to 9.0.0 or later.

CVE & CISA-KEV Catalog

CVE-2026-34020

HIGH

7.5

CVSS v3

NVD

Description

Use of GET Request Method With Sensitive Query Strings vulnerability in Apache OpenMeetings. The REST login endpoint uses HTTP GET method with username and password passed as query parameters. Please check references regarding possible impact This issue affects Apache OpenMeetings: from 3.1.3 before 9.0.0. Users are recommended to upgrade to version 9.0.0, which fixes the issue.

CWE-598

How to fix

Remediation Available

openmeetingsNVD

Affected:>= 3.1.3, < 9.0.0Fixed in:9.0.0CVE-2026-34020derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.51%probability of exploitation in 30 days

40thpercentile

Moderate risk: more likely to be exploited than 40% of all known CVEs.

References

Vendor Advisory1

lists.apache.org

Third-Party Advisory1

openwall.com

Other references1

owasp.org

Related Vulnerabilities

Other CWE-598 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-3943	Medium	4.1	7.4%	-	-
CVE-2017-3185	Critical	9.8	3.2%	-	-
CVE-2018-14822	Critical	9.8	2.9%	-	-
CVE-2018-5467	Medium	6.5	1.3%	-	-
CVE-2023-6014	Critical	9.8	1.2%	-	-
CVE-2017-9280	Medium	4.3	1.1%	-	Fix

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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 2026-04-15.