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    2 vulnerabilities by TrustTunnel

    CVE-2026-24902 (GCVE-0-2026-24902)

    Vulnerability from cvelistv5 – Published: 2026-01-29 21:21 – Updated: 2026-01-29 21:33
    VLAI
    Title
    TrustTunnel has SSRF and private network restriction bypass via numeric address destinations
    Summary
    TrustTunnel is an open-source VPN protocol with a server-side request forgery and and private network restriction bypass in versions prior to 0.9.114. In `tcp_forwarder.rs`, SSRF protection for `allow_private_network_connections = false` was only applied in the `TcpDestination::HostName(peer)` path. The `TcpDestination::Address(peer) => peer` path proceeded to `TcpStream::connect()` without equivalent checks (for example `is_global_ip`, `is_loopback`), allowing loopback/private targets to be reached by supplying a numeric IP. The vulnerability is fixed in version 0.9.114.
    Severity
    7.1 (High)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    Impacted products
    Vendor Product Version
    TrustTunnel TrustTunnel Affected: < 0.9.114
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-24904 (GCVE-0-2026-24904)

    Vulnerability from cvelistv5 – Published: 2026-01-29 21:19 – Updated: 2026-01-29 21:34
    VLAI
    Title
    TrustTunnel has `client_random_prefix` rule bypass via fragmented or partial TLS ClientHello
    Summary
    TrustTunnel is an open-source VPN protocol with a rule bypass issue in versions prior to 0.9.115. In `tls_listener.rs`, `TlsListener::listen()` peeks 1024 bytes and calls `extract_client_random(...)`. If `parse_tls_plaintext` fails (for example, a fragmented/partial ClientHello split across TCP writes), `extract_client_random` returns `None`. In `rules.rs`, `RulesEngine::evaluate` only evaluates `client_random_prefix` when `client_random` is `Some(...)`. As a result, when extraction fails (`client_random == None`), any rule that relies on `client_random_prefix` matching is skipped and evaluation falls through to later rules. As an important semantics note: `client_random_prefix` is a match condition only. It does not mean "block non-matching prefixes" by itself. A rule with `client_random_prefix = ...` triggers its `action` only when the prefix matches (and the field is available to evaluate). Non-matches (or `None`) simply do not match that rule and continue to fall through. The vulnerability is fixed in version 0.9.115.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-284 - Improper Access Control
    Assigner
    References
    Impacted products
    Vendor Product Version
    TrustTunnel TrustTunnel Affected: < 0.9.115
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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