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HIGH severity

CVE-2026-34020 — openmeetings-parent

HIGH

CVE-2026-34020 is a high-severity (CVSS 7.5) CWE-598 vulnerability in org.apache.openmeetings:openmeetings-parent. A fix is available for org.apache.openmeetings:openmeetings-parent — see the affected versions and patch details below.

Apache OpenMeetings Uses GET Request Method With Sensitive Query Strings

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-34020.

EPSS Exploitation Probability

via FIRST.org ↗
0.5%probability of exploitation in next 30 days
Lower Risk+0.01%
Lower risk than most CVEs44th percentile — riskier than 44% of all scored CVEsHighest risk
0.00%0.43%0.86%1.29%0.1%0.5%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
☕org.apache.openmeetings:openmeetings-parent

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.apache.openmeetings:openmeetings-parent≥ 3.1.3&&< 9.0.09.0.0org.apache.openmeetings:openmeetings-parent:9.0.0

Affected Products

1 product · 1 configurations
Application
openmeetingsapache
≥ 3.1.3 && < 9.0.0
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.openmeetings:openmeetings-parent, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.apache.openmeetings:openmeetings-parent to 9.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-34020 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

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.
O3 Security · Impact-Aware SCA

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CVE-2026-34020: openmeetings-parent — Fixed in 9.0.0