It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2025 advisory.

    (*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject     Alternative Name (SAN) entries. This caused strings.Split(host, .) to execute repeatedly on the same     input hostname. With a large DNS SAN list, verification costs scaled quadratically based on the number of     SAN entries multiplied by the hostname's label count. Because x509.Verify validates hostnames before     building the certificate chain, this overhead occurred even for untrusted certificates. (CVE-2026-27145)

    On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root     when the final path component of the a path is a symbolic link and the path ends in /. For example,     'root.Open(symlink/)' will open symlink even when symlink is a symbolic link pointing outside of the     root. (CVE-2026-39822)

    An authenticated SSH client that repeatedly opened channels which were rejected by the server caused     unbounded memory growth, eventually crashing the server process and affecting all connected users.
    Rejected channels are now properly removed from the connection's internal state and released for garbage     collection. (CVE-2026-39827)

    When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those     permissions were silently discarded, potentially dropping certificate restrictions such as force-command     after a second factor succeeded. Returning non-nil Permissions with PartialSuccessError now results in a     connection error. (CVE-2026-39828)

    When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh.com     were not serialized in the request. Destination restrictions were silently stripped when forwarding keys,     allowing unrestricted use of the key on the remote host. The client now serializes all constraint     extensions. Additionally, the in-memory keyring returned by NewKeyring() now rejects keys with unsupported     constraint extensions instead of silently ignoring them. (CVE-2026-39832)

    When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the     internal payload size calculation caused the write loop to spin indefinitely, sending empty packets     without making progress. The size comparison now uses int64 to prevent truncation. (CVE-2026-39834)

    SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or     IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an     error instead of panicking when these callbacks are nil. (CVE-2026-39835)

    Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive     CPU. (CVE-2026-42504)

    Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a     disclosure of pre-shared key identities in the unencrypted client hello. (CVE-2026-42505)

    When returning errors, functions in the net/textproto package would include its input as part of the     error. This might allow an attacker to inject misleading content to errors that are printed or logged.
    (CVE-2026-42507)

    An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder     for well-crafted inputs. (CVE-2026-46597)

    For certain crafted inputs, a 'ed25519.PrivateKey' was created by casting malformed wire bytes, leading to     a panic when used. (CVE-2026-46598)

Tenable has extracted the preceding description block directly from the tested product 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2327-1 advisory.

    This update for go1.26 fixes the following issues

    Update to go1.26.4 (bsc#1255111):

    - CVE-2026-27145: crypto/x509: split candidate hostname only once (bsc#1267450).
    - CVE-2026-42504: mime: quadratic complexity in WordDecoder.DecodeHeader (bsc#1267442).
    - CVE-2026-42507: net/textproto: arbitrary input are included in errors without any escaping     (bsc#1267444).

    Changes:

     * go#79230 go#79217 boo#1267442 security: fix CVE-2026-42504 mime: quadratic complexity in     WordDecoder.DecodeHeader
     * go#79426 go#79346 boo#1267444 security: fix CVE-2026-42507 net/textproto: arbitrary input are included     in errors        without any escaping
     * go#79701 go#79694 boo#1267450 security: fix CVE-2026-27145 crypto/x509: split candidate hostname only     once
     * go#79191 cmd/compile: Bug in rewrite rules for AMD64 causes SHL instruction overflow and miscompilation
     * go#79226 crypto/internal/fips140/drbg: backport CL 774221 to Go 1.26
     * go#79349 cmd/fix: x/tools/go/analysis/passes/modernize: slicescontains hoists needle expression,     changing side        effect count
     * go#79686 runtime/race: change in 93a4f03 leads to a failed build on Amazon Linux 2 and arm64

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

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

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1874 advisory.

    (*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject     Alternative Name (SAN) entries. This caused strings.Split(host, .) to execute repeatedly on the same     input hostname. With a large DNS SAN list, verification costs scaled quadratically based on the number of     SAN entries multiplied by the hostname's label count. Because x509.Verify validates hostnames before     building the certificate chain, this overhead occurred even for untrusted certificates. (CVE-2026-27145)

    Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive     CPU. (CVE-2026-42504)

    When returning errors, functions in the net/textproto package would include its input as part of the     error. This might allow an attacker to inject misleading content to errors that are printed or logged.
    (CVE-2026-42507)

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

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

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1885 advisory.

    Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service.
    (CVE-2026-25680)

    Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can     be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.
    (CVE-2026-25681)

    Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can     be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.
    (CVE-2026-27136)

    (*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject     Alternative Name (SAN) entries. This caused strings.Split(host, .) to execute repeatedly on the same     input hostname. With a large DNS SAN list, verification costs scaled quadratically based on the number of     SAN entries multiplied by the hostname's label count. Because x509.Verify validates hostnames before     building the certificate chain, this overhead occurred even for untrusted certificates. (CVE-2026-27145)

    The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-     only label. For example, ToUnicode(xn--example-.com) incorrectly returns the name example.com rather     than an error. This behavior can lead to privilege escalation in programs using the idna package. For     example, a program which performs privilege checks on the ASCII hostname may reject example.com but     permit xn--example-.com. If that program subsequently converts the ASCII hostname to Unicode, it will     inadvertently permits access to the Unicode name example.com. (CVE-2026-39821)

    Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can     be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.
    (CVE-2026-42502)

    Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive     CPU. (CVE-2026-42504)

    Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can     be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.
    (CVE-2026-42506)

    When returning errors, functions in the net/textproto package would include its input as part of the     error. This might allow an attacker to inject misleading content to errors that are printed or logged.
    (CVE-2026-42507)

Tenable has extracted the preceding description block directly from the tested product 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	名前	製品	ファミリー	公開日	更新日	深刻度
332060	Amazon Linux 2023 : amazon-cloudwatch-agent (ALAS2023-2026-2025)	Nessus	Amazon Linux Local Security Checks	2026/8/4	2026/8/4	critical
321018	SUSE SLED15 / SLES15 Security Update : go1.26 (SUSE-SU-2026:2327-1)	Nessus	SuSE Local Security Checks	2026/6/14	2026/7/3	medium
321993	Amazon Linux 2023 : golist (ALAS2023-2026-1874)	Nessus	Amazon Linux Local Security Checks	2026/6/22	2026/7/3	medium
322109	Amazon Linux 2023 : credentials-fetcher (ALAS2023-2026-1885)	Nessus	Amazon Linux Local Security Checks	2026/6/22	2026/7/2	high

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