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    2 vulnerabilities by versatica

    CVE-2026-55663 (GCVE-0-2026-55663)

    Vulnerability from nvd – Published: 2026-08-25 18:15 – Updated: 2026-08-25 18:55
    VLAI
    Title
    mediasoup: SCTP state cookie lacks cryptographic authentication, enabling unauthorized association establishment (RFC 9260 violation)
    Summary
    mediasoup is a WebRTC video conferencing system. From version 3.20.0 until 3.20.6 for the npm package and from 0.22.0 until 0.22.5 for the Rust crate, mediasoup's built-in SCTP stack authenticates state cookies using only the hardcoded msworker and 0xAD81 magic values instead of a per-instance secret and HMAC, contrary to RFC 9260 Section 5.1.3. The cookie structure and validation in worker/include/RTC/SCTP/association/StateCookie.hpp and worker/src/RTC/SCTP/association/StateCookie.cpp allow an on-path attacker targeting PlainTransport or PipeTransport with SCTP enabled and without DTLS protection to forge a COOKIE-ECHO whose packet verification tag matches the attacker-controlled localVerificationTag. The forged cookie passes StateCookie::IsMediasoupStateCookie() and Association::HandleReceivedCookieEchoChunk(), establishes an unauthorized SCTP association, and permits DataChannel message injection as a trusted peer. WebRtcTransport is not affected because its SCTP runs inside DTLS. This issue is fixed in npm version 3.20.6 and Rust crate version 0.22.5.
    Severity
    5.6 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-25 18:55 UTC
    CWE
    • CWE-345 - Insufficient Verification of Data Authenticity
    Assigner
    References
    Impacted products
    Vendor Product Version
    versatica mediasoup Affected: >= 3.20.0, < 3.20.6
    Affected: >= 0.22.0, < 0.22.5
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-55663 (GCVE-0-2026-55663)

    Vulnerability from cvelistv5 – Published: 2026-08-25 18:15 – Updated: 2026-08-25 18:55
    VLAI
    Title
    mediasoup: SCTP state cookie lacks cryptographic authentication, enabling unauthorized association establishment (RFC 9260 violation)
    Summary
    mediasoup is a WebRTC video conferencing system. From version 3.20.0 until 3.20.6 for the npm package and from 0.22.0 until 0.22.5 for the Rust crate, mediasoup's built-in SCTP stack authenticates state cookies using only the hardcoded msworker and 0xAD81 magic values instead of a per-instance secret and HMAC, contrary to RFC 9260 Section 5.1.3. The cookie structure and validation in worker/include/RTC/SCTP/association/StateCookie.hpp and worker/src/RTC/SCTP/association/StateCookie.cpp allow an on-path attacker targeting PlainTransport or PipeTransport with SCTP enabled and without DTLS protection to forge a COOKIE-ECHO whose packet verification tag matches the attacker-controlled localVerificationTag. The forged cookie passes StateCookie::IsMediasoupStateCookie() and Association::HandleReceivedCookieEchoChunk(), establishes an unauthorized SCTP association, and permits DataChannel message injection as a trusted peer. WebRtcTransport is not affected because its SCTP runs inside DTLS. This issue is fixed in npm version 3.20.6 and Rust crate version 0.22.5.
    Severity
    5.6 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-25 18:55 UTC
    CWE
    • CWE-345 - Insufficient Verification of Data Authenticity
    Assigner
    References
    Impacted products
    Vendor Product Version
    versatica mediasoup Affected: >= 3.20.0, < 3.20.6
    Affected: >= 0.22.0, < 0.22.5
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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