There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Versions prior to 2.10.2 contain
    improper Host header validation when parsing raw HTTP request messages and when deriving a server request
    URI from server variables. An attacker can provide a malformed Host header containing URI authority
    delimiters, such as `trusted.example@evil.example`. When the Host value is used to construct a URI, the
    malformed value can be reinterpreted as URI userinfo and host. This can cause the PSR-7 request URI host
    to differ from the original Host header value. Applications are affected if they parse attacker-controlled
    raw HTTP requests with `GuzzleHttp\Psr7\Message::parseRequest()` or the legacy 1.x
    `GuzzleHttp\Psr7\parse_request()` function, or if they build server requests from attacker-controlled
    server variables, then rely on the resulting URI host for routing, allow-list checks, or forwarding
    decisions. In affected forwarding or gateway scenarios, this may cause requests or credentials to be sent
    to an unintended host. The issue is patched in `2.10.2`. `1.x` is end-of-life and will not receive a
    patch. Some workarounds are available. Validate the `Host` header as `uri-host [ ":" port ]` before
    calling `Message::parseRequest()` or legacy `parse_request()` on untrusted HTTP request data, or before
    deriving routing and forwarding decisions from a parsed request URI. Reject Host values containing
    userinfo, path, query, or fragment delimiters. (CVE-2026-48998)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-5afe6630dc advisory.

    33.0.6 Release

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 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-ee50c21f92 advisory.

    33.0.6 Release

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 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-2aa96a9ce5 advisory.

    ## Release 1.7.3

    - OAuth: Don't log an error when a refreshed token's TTL is below refresh_interval (#10213)
    - Fix out-of-bounds string reads on truncated compressed-RTF in the TNEF decoder (#10269)
    - Fix bug where searching in example_addressbook plugin was reporting zero results despite matches (#9022)
    - Fix vCard import mis-detecting folded continuation lines as BEGIN/END:VCARD (#9593)
    - Fix bug where the php session driver practically disabled session.lazy_write optimization (#9885,     #10248)
    - Fix bug where dates could get displayed shifted back one day in some places (#9403)
    - Fix regression where it wasn't possible to hide a skin logo image anymore (#10254)
    - Fix decoding of multi-segment RFC2231 extended attachment filenames (#10268)
    - Fix vCard import silently dropping properties with a non-item group prefix (#10271)
    - Fix so `REQUEST_URI` is used as a fallback if `PATH_INFO` is empty in static.php (#10181)
    - Security: Add basic validation for content proxied by the css proxy
    - Security: Fix SSRF bypass via specific local address URLs using 100.64.0.0/10 and fe80::/10 nets
    - Security: Fix SSRF filter bypass via various forms of nip.io/sslip.io hostnames evading is_local_url()     check
    - Security: Fix remote content blocking bypass via unclosed url() in a FuncIRI attribute
    - Security: Fix LDAP filter injection via unescaped %u/%fu/%d substitution into the `search_filter`
    - Security: Fix arbitrary Sieve script injection via a filter rule name bypassing     `managesieve_disabled_actions`
    - Security: Fix RCE via `cmd_learn` driver of markasjunk plugin
    - Security: Fix IMAP command injection via mail search and LITERAL+ byte-count desynchronization
    - Security: Fix password's modoboa driver leak of an authentication token to a user-controlled host
    - Security: Fix stored XSS in Add to address book action
    - Security: Fix HTML/CSS sanitization bypass via SVG animate `by` attribute



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-2026-914a40b4fd advisory.


    ## Release 1.6.18

    - Password: Fix fatal error Class 'Zxcvbn' not found (#10274)
    - Fix out-of-bounds string reads on truncated compressed-RTF in the TNEF decoder (#10269)
    - Security: Add basic validation for content proxied by the css proxy
    - Security: Fix SSRF bypass via specific local address URLs using 100.64.0.0/10 and fe80::/10 nets
    - Security: Fix SSRF filter bypass via various forms of nip.io/sslip.io hostnames evading is_local_url()     check
    - Security: Fix remote content blocking bypass via unclosed url() in a FuncIRI attribute
    - Security: Fix LDAP filter injection via unescaped %u/%fu/%d substitution into the `search_filter`
    - Security: Fix arbitrary Sieve script injection via a filter rule name bypassing     `managesieve_disabled_actions`
    - Security: Fix RCE via `cmd_learn` driver of markasjunk plugin
    - Security: Fix IMAP command injection via mail search and LITERAL+ byte-count desynchronization
    - Security: Fix password's modoboa driver leak of an authentication token to a user-controlled host
    - Security: Fix stored XSS in Add to address book action
    - Security: Fix HTML/CSS sanitization bypass via SVG animate `by` attribute



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.

  - guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Versions prior to 2.10.2 contain     improper Host header validation when parsing raw HTTP request messages and when deriving a server request     URI from server variables. An attacker can provide a malformed Host header containing URI authority     delimiters, such as `trusted.example@evil.example`. When the Host value is used to construct a URI, the     malformed value can be reinterpreted as URI userinfo and host. This can cause the PSR-7 request URI host     to differ from the original Host header value. Applications are affected if they parse attacker-controlled     raw HTTP requests with `GuzzleHttp\Psr7\Message::parseRequest()` or the legacy 1.x     `GuzzleHttp\Psr7\parse_request()` function, or if they build server requests from attacker-controlled     server variables, then rely on the resulting URI host for routing, allow-list checks, or forwarding     decisions. In affected forwarding or gateway scenarios, this may cause requests or credentials to be sent     to an unintended host. The issue is patched in `2.10.2`. `1.x` is end-of-life and will not receive a     patch. Some workarounds are available. Validate the `Host` header as `uri-host [ : port ]` before     calling `Message::parseRequest()` or legacy `parse_request()` on untrusted HTTP request data, or before     deriving routing and forwarding decisions from a parsed request URI. Reject Host values containing     userinfo, path, query, or fragment delimiters. (CVE-2026-48998)

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

ID	Name	Product	Family	Published	Updated	Severity
443073	SCA: security update for guzzlehttp/psr7 (GHSA-34xg-wgjx-8xph)	Tenable Self-Hosted Container Security	SCA Checks	6/11/2026	7/2/2026	medium
443073	SCA: security update for guzzlehttp/psr7 (GHSA-34xg-wgjx-8xph)	Tenable Cloud Security	SCA Checks	6/11/2026	7/2/2026	medium
325111	Fedora 43 : nextcloud (2026-5afe6630dc)	Nessus	Fedora Local Security Checks	7/5/2026	7/5/2026	high
325136	Fedora 44 : nextcloud (2026-ee50c21f92)	Nessus	Fedora Local Security Checks	7/6/2026	7/6/2026	high
338391	Fedora 44 : roundcubemail (2026-2aa96a9ce5)	Nessus	Fedora Local Security Checks	8/20/2026	8/20/2026	medium
338387	Fedora 43 : roundcubemail (2026-914a40b4fd)	Nessus	Fedora Local Security Checks	8/20/2026	8/20/2026	medium
317944	Linux Distros Unpatched Vulnerability : CVE-2026-48998	Nessus	Misc.	5/29/2026	9/2/2026	medium

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