RUSTSEC-2026-0121

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Source

https://rustsec.org/advisories/RUSTSEC-2026-0121

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0121.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2026-0121

Aliases

GHSA-g588-cjg3-6g78

Published

2026-05-05T12:00:00Z

Modified

2026-05-12T05:04:00Z

Summary

Denial of service in Steamworks game clients/servers using P2P authentication

Details

Processing the raw ValidateAuthTicketResponse_t callback data panics when the m_eAuthSessionResponse field is k_EAuthSessionResponseAuthTicketNetworkIdentityFailure. This can lead to denial of service in game clients and servers using the begin_authentication_session API to authenticate players if a malicious game client sends an authentication ticket with a network identity that does not match that of the verifier.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / steamworks

Package

Name: steamworks; View open source insights on deps.dev
Purl: pkg:cargo/steamworks

Affected ranges

Type: SEMVER
Events: Introduced

0.0.0-0

Fixed

0.13.1

Ecosystem specific

{
    "affected_functions": null,
    "affects": {
        "arch": [],
        "os": [],
        "functions": [
            "steamworks::Client::process_callbacks",
            "steamworks::Client::register_callback",
            "steamworks::Server::begin_authentication_session",
            "steamworks::User::begin_authentication_session",
            "steamworks::ValidateAuthTicketResponse::from_raw"
        ]
    }
}

Database specific

informational

null