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    CVE-2026-33953

    LinkAce is a self-hosted archive to collect website links. Versions prior to 2.5.3 block direct requests to private IP literals, but still performs server-side requests to internal-only resources when those resources are referenced through an internal hostname. This allows an authenticated user to trigger server-side requests to internal services reachable by the LinkAce server but not directly reachable by an external user. Version 2.5.3 patches the issue.

    Published:Mar 27, 2026
    Last Modified:Mar 31, 2026
    EPS:Mar 27, 2026
    EPSS Score:0.00028
    CVSS Score:8.5

    Affected Products

    Vendor
    Kovah
    Product
    Linkace
    Vendor
    Linkace
    Product
    Linkace

    Exploits

    https://github.com/Kovah/LinkAce/security/advisories/GHSA-wp4g-qw9j-wfjg

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

    CVE-2026-49436 (CVSS 7.3) — LinkAce is a self-hosted archive to collect website links. Prior to version 2.5.7, the Bulk Link API endpoint …
    CVE-2026-45342 (CVSS 7.1) — LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, LinkAce contains an Insecure Direct…
    CVE-2026-45343 (CVSS 8.5) — LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, LinkAce contains a stored cross-sit…
    CVE-2026-45344 (CVSS 8.1) — LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, the setup database configuration fl…
    CVE-2026-40905 (CVSS 8.1) — LinkAce is a self-hosted archive to collect website links. Prior to 2.5.4, a password reset poisoning vulnerab…
    CVE-2026-35516 (CVSS 5) — LinkAce is a self-hosted archive to collect website links. Prior to 2.5.4, LinkRepository::update and CheckLin…
    CVE-2026-33954 (CVSS 6.5) — LinkAce is a self-hosted archive to collect website links. In versions prior to 2.5.3, a private note attached…
    CVE-2026-30954 (CVSS 5.3) — LinkAce is a self-hosted archive to collect website links. In 2.1.0 and earlier, the processTaxonomy() method …
    CVE-2026-30953 (CVSS 7.7) — LinkAce is a self-hosted archive to collect website links. When a user creates a link via POST /links, the ser…
    CVE-2026-27458 (CVSS 8.7) — LinkAce is a self-hosted archive to collect website links. Versions 2.4.2 and below have a Stored Cross-site S…

    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