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    CVE-2026-44734

    OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, a Missing Authorization vulnerability exists in OpenProject's CostReportsController. The rename and update actions allow any authenticated user to modify the name, filters, and grouping of any Public cost report in the system without verifying ownership or permission level. An attacker who discovers or guesses a public report's numeric ID can rename or overwrite its filter configuration without any warning to the report's owner. This vulnerability is fixed in 17.3.2 and 17.4.0.

    Published:Jun 26, 2026
    Last Modified:Jun 27, 2026
    EPS:Jun 26, 2026
    EPSS Score:
    CVSS Score:6.5

    Affected Products

    Vendor
    Opf
    Product
    Openproject

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2026-55095 (CVSS 5.3) — OpenProject is open-source, web-based project management software. In version 17.5.1 and earlier, an authentic…
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    CVE-2026-67528 (CVSS 4.3) — OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/custom_options…
    CVE-2026-67527 (CVSS 7.6) — OpenProject is open-source, web-based project management software. Prior to 17.6.0, PATCH /api/v3/work_package…
    CVE-2026-44733 (CVSS 5.9) — OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, Business Logic …
    CVE-2026-44731 (CVSS 4.3) — OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, the web applica…
    CVE-2026-44732 (CVSS 4.3) — OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, OpenProject exp…
    CVE-2026-44735 (CVSS 6.5) — OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, the GET /api/v3…
    CVE-2026-44696 (CVSS 5.7) — OpenProject is open-source, web-based project management software. Prior to 17.4.0, OpenProject's rich text (m…
    CVE-2026-49355 (CVSS 4.3) — OpenProject is open-source, web-based project management software. Prior to 17.4.0, `GET /api/v3/meetings/:mee…

    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