Apache Traffic Server forwards HTTP/2 origin trailers to HTTP/1 clients without proper chunked framing when converting HTTP/2 to HTTP/1. This issue affects Apache Traffic Server: from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 3caa3b4b-d2ab-11f1-bae2-3497f65b111b advisory.

    The Apache Traffic Server project published security advisories               for issues fixed in releases 10.1.1 through 10.1.5.  They include               request smuggling and cache poisoning through malformed requests and               responses, memory corruption, and unauthenticated access in the               experimental plugins, which the port builds (tsmemcache, wasm, and               magick with the IMAGEMAGICK option).

Tenable has extracted the preceding description block directly from the FreeBSD 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 Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-5bec7441bb advisory.

    Update to upstream 10.1.4     Resolves:
    - CVE-2026-22068 - Unanchored regular-expression matching allows ACL and policy bypass
    - CVE-2026-33267 - Hop-by-hop and internal headers from untrusted peers are not stripped
    - CVE-2026-58150 - HTTP/2 requests with Transfer-Encoding are not rejected, allowing request smuggling
    - CVE-2026-58151 - Abusive HTTP/2 framing can exhaust resources and crash the server
    - CVE-2026-58154 - Memory-safety errors in MIME and header parsing
    - CVE-2026-58155 - Header-name length truncation enables header aliasing and request smuggling
    - CVE-2026-58157 - Improper server-session reuse can expose data across client connections
    - CVE-2026-58161 - Memory-safety errors in TLS and SNI handling can crash the server
    - CVE-2026-58177 - Memory-safety and path-traversal errors in the Cripts framework
    - CVE-2026-65324 - HTTP/2 and HTTP/3 dechunking removes per-stream buffer cap, allowing memory exhaustion
    - CVE-2026-24033 - Chunked extension quoted-string parsing allows request smuggling
    - CVE-2026-33930 - Buffer overflow via Host field that has a long string value
    - CVE-2026-41920 - SNI and Host comparison uses a one-sided length, allowing host-SNI policy bypass
    - CVE-2026-57834 - Malformed chunked message body allows request smuggling
    - CVE-2026-58152 - Integer-handling errors in HPACK/XPACK decoding corrupt memory
    - CVE-2026-58153 - HTTP/2 to HTTP/1 conversion forwards origin trailers to clients unsafely
    - CVE-2026-58156 - URL and port parsing errors allow access-control bypass
    - CVE-2026-58158 - PROXY protocol parsing has port truncation and a stack overflow
    - CVE-2026-58159 - Listener and ACL handling allow access-control bypass
    - CVE-2026-58160 - Out-of-bounds reads while parsing DNS responses
    - CVE-2026-58162 - Certifier plugin trusts client SNI when generating certificates
    - CVE-2026-58163 - Cache deserialization and lifetime errors can corrupt state or crash the server
    - CVE-2026-58164 - Remap configuration lifetime and TOCTOU errors cause use-after-free
    - CVE-2026-58175 - HostDB SRV handling leaks memory
    - CVE-2026-58178 - ESI plugin allows uncontrolled recursion and server-side request forgery
    - CVE-2026-58179 - regex_remap plugin overflows the stack from attacker input
    - CVE-2026-58180 - txn_box plugin overflows the stack from attacker input
    - CVE-2026-58181 - uri_signing and url_sig plugins can exhaust the stack or crash
    - CVE-2026-58182 - ts_lua plugin has initialization and resource-handling errors
    - CVE-2026-58183 - prefetch plugin can crash on attacker-influenced input
    - CVE-2026-58184 - header_rewrite plugin cookie handling can corrupt memory
    - CVE-2026-58185 - Use-after-free in the intercept plugin
    - CVE-2026-58186 - webp_transform plugin decodes unsafely and mislabels degraded responses
    - CVE-2026-58187 - Multiplexer plugin chunk decoder enables a denial of service
    - CVE-2026-58188 - Memory-safety and limit-bypass errors across experimental plugins
    - CVE-2026-58189 - Plugins resetting the redirect counter enable SSRF amplification
    - CVE-2026-65100 - HPACK encoder desynchronizes from the decoder after a failed header encode
    - CVE-2026-65325 - HTTP/2 multiplexed origin sessions are reused without certificate re-verification


Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-144d6c9bcc advisory.

    Update to upstream 10.1.4     Resolves:
    - CVE-2026-22068 - Unanchored regular-expression matching allows ACL and policy bypass
    - CVE-2026-33267 - Hop-by-hop and internal headers from untrusted peers are not stripped
    - CVE-2026-58150 - HTTP/2 requests with Transfer-Encoding are not rejected, allowing request smuggling
    - CVE-2026-58151 - Abusive HTTP/2 framing can exhaust resources and crash the server
    - CVE-2026-58154 - Memory-safety errors in MIME and header parsing
    - CVE-2026-58155 - Header-name length truncation enables header aliasing and request smuggling
    - CVE-2026-58157 - Improper server-session reuse can expose data across client connections
    - CVE-2026-58161 - Memory-safety errors in TLS and SNI handling can crash the server
    - CVE-2026-58177 - Memory-safety and path-traversal errors in the Cripts framework
    - CVE-2026-65324 - HTTP/2 and HTTP/3 dechunking removes per-stream buffer cap, allowing memory exhaustion
    - CVE-2026-24033 - Chunked extension quoted-string parsing allows request smuggling
    - CVE-2026-33930 - Buffer overflow via Host field that has a long string value
    - CVE-2026-41920 - SNI and Host comparison uses a one-sided length, allowing host-SNI policy bypass
    - CVE-2026-57834 - Malformed chunked message body allows request smuggling
    - CVE-2026-58152 - Integer-handling errors in HPACK/XPACK decoding corrupt memory
    - CVE-2026-58153 - HTTP/2 to HTTP/1 conversion forwards origin trailers to clients unsafely
    - CVE-2026-58156 - URL and port parsing errors allow access-control bypass
    - CVE-2026-58158 - PROXY protocol parsing has port truncation and a stack overflow
    - CVE-2026-58159 - Listener and ACL handling allow access-control bypass
    - CVE-2026-58160 - Out-of-bounds reads while parsing DNS responses
    - CVE-2026-58162 - Certifier plugin trusts client SNI when generating certificates
    - CVE-2026-58163 - Cache deserialization and lifetime errors can corrupt state or crash the server
    - CVE-2026-58164 - Remap configuration lifetime and TOCTOU errors cause use-after-free
    - CVE-2026-58175 - HostDB SRV handling leaks memory
    - CVE-2026-58178 - ESI plugin allows uncontrolled recursion and server-side request forgery
    - CVE-2026-58179 - regex_remap plugin overflows the stack from attacker input
    - CVE-2026-58180 - txn_box plugin overflows the stack from attacker input
    - CVE-2026-58181 - uri_signing and url_sig plugins can exhaust the stack or crash
    - CVE-2026-58182 - ts_lua plugin has initialization and resource-handling errors
    - CVE-2026-58183 - prefetch plugin can crash on attacker-influenced input
    - CVE-2026-58184 - header_rewrite plugin cookie handling can corrupt memory
    - CVE-2026-58185 - Use-after-free in the intercept plugin
    - CVE-2026-58186 - webp_transform plugin decodes unsafely and mislabels degraded responses
    - CVE-2026-58187 - Multiplexer plugin chunk decoder enables a denial of service
    - CVE-2026-58188 - Memory-safety and limit-bypass errors across experimental plugins
    - CVE-2026-58189 - Plugins resetting the redirect counter enable SSRF amplification
    - CVE-2026-65100 - HPACK encoder desynchronizes from the decoder after a failed header encode
    - CVE-2026-65325 - HTTP/2 multiplexed origin sessions are reused without certificate re-verification


Tenable has extracted the preceding description block directly from the Fedora 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Apache Traffic Server forwards HTTP/2 origin trailers to HTTP/1 clients without proper chunked framing     when converting HTTP/2 to HTTP/1. This issue affects Apache Traffic Server: from 10.0.0 through 10.1.3.
    Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue. (CVE-2026-58153)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
373479	FreeBSD : trafficserver -- multiple vulnerabilities (3caa3b4b-d2ab-11f1-bae2-3497f65b111b)	Nessus	FreeBSD Local Security Checks	Local	critical
333156	Fedora 44 : trafficserver (2026-5bec7441bb)	Nessus	Fedora Local Security Checks	Local	critical
333031	Fedora 43 : trafficserver (2026-144d6c9bcc)	Nessus	Fedora Local Security Checks	Local	critical
330716	Linux Distros Unpatched Vulnerability : CVE-2026-58153	Nessus	Misc.	Local	medium

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CVE-2026-58153

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