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    4 vulnerabilities by Mobi-Com Polska Sp. z o.o.

    CVE-2026-70368 (GCVE-0-2026-70368)

    Vulnerability from nvd – Published: 2026-08-04 13:52 – Updated: 2026-08-06 07:33
    VLAI
    Title
    Stunnel: stack-based out-of-bounds read/write in stunnel s_vlog via oversized log message
    Summary
    A stack-based out-of-bounds read vulnerability exists in the "s_vlog" function of stunnel, when handling oversized log messages via "vsnprintf". A remote attacker with network access to a stunnel service can send protocol inputs that trigger a log message longer than 1024 bytes, leading to an out-of-bounds stack read and a potential crash. In certain corner cases, the same vulnerability could be used to replace a series of trailing "\n" characters with "\0".
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-04 14:21 UTC
    CWE
    Assigner
    References
    URL Tags
    https://access.redhat.com/security/cve/CVE-2026-70368 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2462029 issue-trackingx_refsource_REDHAT
    Impacted products
    Date Public
    2026-08-04 10:30
    Show details on NVD website

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    CVE-2026-70367 (GCVE-0-2026-70367)

    Vulnerability from nvd – Published: 2026-08-04 13:52 – Updated: 2026-08-06 07:28
    VLAI
    Title
    Stunnel: ssrf bypass in stunnel socks proxy via ipv4-mapped ipv6 loopback and unspecified addresses allows access to loopback-only services
    Summary
    A Server-Side Request Forgery (SSRF) bypass vulnerability exists in “stunnel” 5.79 and lower when configured in SOCKS proxy mode. This flaw allows a client to bypass intended localhost restrictions by using IPv4-mapped IPv6 addresses (e.g., “::ffff:127.0.0.1”) or unspecified addresses ("0.0.0.0", "::"), enabling access to loopback-only services on the "stunnel" host that should not be network-reachable.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-04 14:50 UTC
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    URL Tags
    https://access.redhat.com/security/cve/CVE-2026-70367 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2462083 issue-trackingx_refsource_REDHAT
    Impacted products
    Date Public
    2026-08-04 10:29
    Show details on NVD website

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    CVE-2026-70368 (GCVE-0-2026-70368)

    Vulnerability from cvelistv5 – Published: 2026-08-04 13:52 – Updated: 2026-08-06 07:33
    VLAI
    Title
    Stunnel: stack-based out-of-bounds read/write in stunnel s_vlog via oversized log message
    Summary
    A stack-based out-of-bounds read vulnerability exists in the "s_vlog" function of stunnel, when handling oversized log messages via "vsnprintf". A remote attacker with network access to a stunnel service can send protocol inputs that trigger a log message longer than 1024 bytes, leading to an out-of-bounds stack read and a potential crash. In certain corner cases, the same vulnerability could be used to replace a series of trailing "\n" characters with "\0".
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-04 14:21 UTC
    CWE
    Assigner
    References
    URL Tags
    https://access.redhat.com/security/cve/CVE-2026-70368 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2462029 issue-trackingx_refsource_REDHAT
    Impacted products
    Date Public
    2026-08-04 10:30
    Show details on NVD website

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    CVE-2026-70367 (GCVE-0-2026-70367)

    Vulnerability from cvelistv5 – Published: 2026-08-04 13:52 – Updated: 2026-08-06 07:28
    VLAI
    Title
    Stunnel: ssrf bypass in stunnel socks proxy via ipv4-mapped ipv6 loopback and unspecified addresses allows access to loopback-only services
    Summary
    A Server-Side Request Forgery (SSRF) bypass vulnerability exists in “stunnel” 5.79 and lower when configured in SOCKS proxy mode. This flaw allows a client to bypass intended localhost restrictions by using IPv4-mapped IPv6 addresses (e.g., “::ffff:127.0.0.1”) or unspecified addresses ("0.0.0.0", "::"), enabling access to loopback-only services on the "stunnel" host that should not be network-reachable.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-04 14:50 UTC
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    URL Tags
    https://access.redhat.com/security/cve/CVE-2026-70367 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2462083 issue-trackingx_refsource_REDHAT
    Impacted products
    Date Public
    2026-08-04 10:29
    Show details on NVD website

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