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    CVE-2026-33266

    Use of Hard-coded Cryptographic Key vulnerability in Apache OpenMeetings. The remember-me cookie encryption key is set to default value in openmeetings.properties and not being auto-rotated. In case OM admin hasn't changed the default encryption key, an attacker who has stolen a cookie from a logged-in user can get full user credentials. This issue affects Apache OpenMeetings: from 6.1.0 before 9.0.0. Users are recommended to upgrade to version 9.0.0, which fixes the issue.

    Published:Apr 9, 2026
    Last Modified:Apr 15, 2026
    EPS:Apr 9, 2026
    EPSS Score:0.00024
    CVSS Score:7.5

    Affected Products

    Vendor
    Apache
    Product
    Openmeetings

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2024-54676 (CVSS 9.8) — Vendor: The Apache Software Foundation Versions Affected: Apache OpenMeetings from 2.1.0 before 8.0.0 Descri…
    CVE-2023-28936 (CVSS 5.3) — Attacker can access arbitrary recording/room Vendor: The Apache Software Foundation Versions Affected: Apach…
    CVE-2023-29032 (CVSS 8.1) — An attacker that has gained access to certain private information can use this to act as other user. Vendor: …
    CVE-2023-29246 (CVSS 7.2) — An attacker who has gained access to an admin account can perform RCE via null-byte injection Vendor: The Apa…
    CVE-2023-28326 (CVSS 9.8) — Vendor: The Apache Software Foundation Versions Affected: Apache OpenMeetings from 2.0.0 before 7.0.0 Descri…
    CVE-2021-27576 (CVSS 7.5) — If was found that the NetTest web service can be used to overload the bandwidth of a Apache OpenMeetings serve…
    CVE-2020-13951 (CVSS 7.5) — Attackers can use public NetTest web service of Apache OpenMeetings 4.0.0-5.0.0 to organize denial of service …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High