mutt before 2.3.2 has an infinite loop in data_object_to_stream in crypt-gpgme.c.

The AlmaLinux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1791192215 advisory.

  - mutt before 2.3.2 sometimes uses strfcpy instead of memcpy for the IMAP auth_cram MD5 digest.
    (CVE-2026-43859)

  - mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5 digest.
    (CVE-2026-43860)

  - In mutt before 2.3.2, the imap_auth_gss security level is mishandled. (CVE-2026-43862)

  - mutt before 2.3.2 has an infinite loop in data_object_to_stream in crypt-gpgme.c. (CVE-2026-43863)

  - mutt before 2.3.2 has a show_sig_summary NULL pointer dereference. (CVE-2026-43864)

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

The Rocky Linux 9.6 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790003865 advisory.

  - mutt before 2.3.2 sometimes uses strfcpy instead of memcpy for the IMAP auth_cram MD5 digest.
    (CVE-2026-43859)

  - mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5 digest.
    (CVE-2026-43860)

  - mutt before 2.3.2 does not check for '\0' in url_pct_decode. (CVE-2026-43861)

  - In mutt before 2.3.2, the imap_auth_gss security level is mishandled. (CVE-2026-43862)

  - mutt before 2.3.2 has an infinite loop in data_object_to_stream in crypt-gpgme.c. (CVE-2026-43863)

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

The AlmaLinux 9.6 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790003865 advisory.

  - mutt before 2.3.2 sometimes uses strfcpy instead of memcpy for the IMAP auth_cram MD5 digest.
    (CVE-2026-43859)

  - mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5 digest.
    (CVE-2026-43860)

  - mutt before 2.3.2 does not check for '\0' in url_pct_decode. (CVE-2026-43861)

  - In mutt before 2.3.2, the imap_auth_gss security level is mishandled. (CVE-2026-43862)

  - mutt before 2.3.2 has an infinite loop in data_object_to_stream in crypt-gpgme.c. (CVE-2026-43863)

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

According to the versions of the mutt packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5     digest.(CVE-2026-43860)

    mutt before 2.3.2 has an infinite loop in data_object_to_stream in crypt-gpgme.c.(CVE-2026-43863)

    mutt before 2.3.2 has a show_sig_summary NULL pointer dereference.(CVE-2026-43864)

    mutt before 2.3.2 sometimes uses strfcpy instead of memcpy for the IMAP auth_cram MD5     digest.(CVE-2026-43859)

    mutt before 2.3.2 does not check for '\0' in url_pct_decode.(CVE-2026-43861)

    In mutt before 2.3.2, the imap_auth_gss security level is mishandled.(CVE-2026-43862)

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

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

According to the versions of the mutt packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    mutt before 2.3.2 sometimes uses strfcpy instead of memcpy for the IMAP auth_cram MD5     digest.(CVE-2026-43859)

    In mutt before 2.3.2, the imap_auth_gss security level is mishandled.(CVE-2026-43862)

    mutt before 2.3.2 does not check for '\0' in url_pct_decode.(CVE-2026-43861)

    mutt before 2.3.2 has an infinite loop in data_object_to_stream in crypt-gpgme.c.(CVE-2026-43863)

    mutt before 2.3.2 has a show_sig_summary NULL pointer dereference.(CVE-2026-43864)

    mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5     digest.(CVE-2026-43860)

Tenable has extracted the preceding description block directly from the EulerOS mutt 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 SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2300-1 advisory.

    This update for mutt fixes the following issues

    - CVE-2026-43859: `strfcpy` used instead of `memcpy` for the IMAP `auth_cram` MD5 digest (bsc#1263897).
    - CVE-2026-43860: truncation of `hash_passwd` by one byte for IMAP `auth_cram` MD5 digest (bsc#1263896).
    - CVE-2026-43861: missing check for `\0` in `url_pct_decode` (bsc#1263895).
    - CVE-2026-43862: mishandling of the `imap_auth_gss` security level (bsc#1263894).
    - CVE-2026-43863: infinite loop in `data_object_to_stream` in `crypt-gpgme.c` (bsc#1263893).
    - CVE-2026-43864: NULL pointer dereference in function `show_sig_summary` (bsc#1263892).

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.

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-2026:2301-1 advisory.

    This update for mutt fixes the following issues

    - CVE-2026-43859: `strfcpy` used instead of `memcpy` for the IMAP `auth_cram` MD5 digest (bsc#1263897).
    - CVE-2026-43860: truncation of `hash_passwd` by one byte for IMAP `auth_cram` MD5 digest (bsc#1263896).
    - CVE-2026-43861: missing check for `\0` in `url_pct_decode` (bsc#1263895).
    - CVE-2026-43862: mishandling of the `imap_auth_gss` security level (bsc#1263894).
    - CVE-2026-43863: infinite loop in `data_object_to_stream` in `crypt-gpgme.c` (bsc#1263893).
    - CVE-2026-43864: NULL pointer dereference in function `show_sig_summary` (bsc#1263892).

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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - mutt before 2.3.2 has an infinite loop in data_object_to_stream in crypt-gpgme.c. (CVE-2026-43863)

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

ID	Name	Product	Family	Type	Severity
362979	AlmaLinux 9.2 [TuxCare] Security Update: mutt Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1791192215)	Nessus	Alma Linux Local Security Checks	Local	low
359767	Rocky Linux 9.6 [TuxCare] Security Update: mutt Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1790003865)	Nessus	Rocky Linux Local Security Checks	Local	low
359591	AlmaLinux 9.6 [TuxCare] Security Update: mutt Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1790003865)	Nessus	Alma Linux Local Security Checks	Local	low
332940	EulerOS 2.0 SP15 : mutt (EulerOS-SA-2026-2898)	Nessus	Huawei Local Security Checks	Local	low
332923	EulerOS 2.0 SP15 : mutt (EulerOS-SA-2026-2939)	Nessus	Huawei Local Security Checks	Local	low
332835	EulerOS 2.0 SP13 : mutt (EulerOS-SA-2026-3032)	Nessus	Huawei Local Security Checks	Local	low
332812	EulerOS 2.0 SP13 : mutt (EulerOS-SA-2026-2982)	Nessus	Huawei Local Security Checks	Local	low
321070	SUSE SLES12 Security Update : mutt (SUSE-SU-2026:2300-1)	Nessus	SuSE Local Security Checks	Local	low
321013	SUSE SLED15 / SLES15 Security Update : mutt (SUSE-SU-2026:2301-1)	Nessus	SuSE Local Security Checks	Local	low
312043	Linux Distros Unpatched Vulnerability : CVE-2026-43863	Nessus	Misc.	Local	low

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