The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:55801 advisory.

    The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based     applications.

    Security Fix(es):

    * haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions (CVE-2026-55204)

    * haproxy: HAProxy: Response smuggling due to integer overflow in FastCGI record length handling     (CVE-2026-55203)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:55802 advisory.

    The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based     applications.

    Security Fix(es):

    * haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions (CVE-2026-55204)

    * haproxy: HAProxy: Response smuggling due to integer overflow in FastCGI record length handling     (CVE-2026-55203)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-55772 advisory.

    - Fix NULL pointer dereference in hpack_dht_insert() (CVE-2026-55204)       Resolves: RHEL-211082

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:55679 advisory.

    The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based     applications.

    Security Fix(es):

    * haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions (CVE-2026-55204)

    * haproxy: HAProxy: Response smuggling due to integer overflow in FastCGI record length handling     (CVE-2026-55203)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2026-1627:03 advisory.

    * haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions (CVE-2026-55204)
      * haproxy: HAProxy: Response smuggling due to integer overflow in FastCGI record length handling     (CVE-2026-55203)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
335986	RHEL 9 : haproxy (RHSA-2026:55801)	Nessus	Red Hat Local Security Checks	2026/8/17	2026/8/17	critical
336001	RHEL 9 : haproxy (RHSA-2026:55802)	Nessus	Red Hat Local Security Checks	2026/8/17	2026/8/17	critical
337252	Oracle Linux 9 : haproxy (ELSA-2026-55772)	Nessus	Oracle Linux Local Security Checks	2026/8/18	2026/8/18	critical
337347	RHEL 10 : haproxy (RHSA-2026:55679)	Nessus	Red Hat Local Security Checks	2026/8/18	2026/8/18	critical
339059	MiracleLinux 9 : haproxy-2.8.14-3.el9_8.2 (AXSA:2026-1627:03)	Nessus	Miracle Linux Local Security Checks	2026/8/24	2026/8/24	critical

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