heap OOB write in convert_file_from_to() via a crafted Content-Type header allows attacker to OOB write when email is used as a template.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:4857-1 advisory.

    This update for mutt fixes the following issue:

    - CVE-2026-107570: heap out-of-bounds write in `convert_file_from_to()` via a crafted `Content-Type`     header       (bsc#1284739).

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

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:4818-1 advisory.

    This update for mutt fixes the following issue:

    - CVE-2026-107570: heap out-of-bounds write in `convert_file_from_to()` via a crafted `Content-Type`     header       (bsc#1284739).

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

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

The AlmaLinux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1792567671 advisory.

  - heap OOB write in convert_file_from_to() via a crafted Content-Type header allows attacker to OOB write     when email is used as a template. (CVE-2026-107570)

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

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

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:22099-1 advisory.

    This update for mutt fixes the following issue:

    - CVE-2026-107570: heap out-of-bounds write in `convert_file_from_to()` via a crafted `Content-Type`     header       (bsc#1284739).

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

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

The remote SUSE Linux SLES12 / SLES_SAP12 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:4685-1 advisory.

    This update for mutt fixes the following issue:

    - CVE-2026-107570: heap out-of-bounds write in `convert_file_from_to()` via a crafted `Content-Type`     header       (bsc#1284739).

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

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

The remote Debian 13 host has a package installed that is affected by a vulnerability as referenced in the dsa-6563 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6563-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     October 15, 2026                      https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : mutt     CVE ID         : CVE-2026-107570

    It was discovered that incorrect parsing of Content-Type headers in the     Mutt mail user agent could result in denial of service or potentially     the execution of arbitrary code.

    For the stable distribution (trixie), this problem has been fixed in     version 2.2.13-1+deb13u2.

    We recommend that you upgrade your mutt packages.

    For the detailed security status of mutt please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/mutt

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

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

Note that Nessus has not tested for this issue 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 a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1792092200 advisory.

  - heap OOB write in convert_file_from_to() via a crafted Content-Type header allows attacker to OOB write     when email is used as a template. (CVE-2026-107570)

Note that Nessus has not tested for this issue 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 a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1792092200 advisory.

  - heap OOB write in convert_file_from_to() via a crafted Content-Type header allows attacker to OOB write     when email is used as a template. (CVE-2026-107570)

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

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 28c48cd9-e79a-4ad6-8e62-1317c2ec19a1 advisory.

    Kevin J. McCarthy reports:

              Fixing an OOB heap write. This is triggered by a specially               crafted Content-Header line in an email that is used as a               template for a new email, via <resend-message >.
              Thanks to Calif.io, in collaboration with               Anthropic for sending me a detailed write up and               suggested patch.


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

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

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

  - heap OOB write in convert_file_from_to() via a crafted Content-Type header allows attacker to OOB write
    when email is used as a template. (CVE-2026-107570)

The version of mutt installed on the remote host is prior to 2.4.3. It is, therefore, affected by a vulnerability as referenced in the SSA:2026-282-01 advisory.

    New mutt packages are available for Slackware 15.0 and -current to fix security issues.

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

Note that Nessus has not tested for this issue 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.

  - heap OOB write in convert_file_from_to() via a crafted Content-Type header allows attacker to OOB write     when email is used as a template. (CVE-2026-107570)

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

ID	Name	Product	Family	Type	Severity
371092	SUSE SLED15 / SLES15 Security Update : mutt (SUSE-SU-2026:4857-1)	Nessus	SuSE Local Security Checks	Local	low
370371	SUSE SLES15 Security Update : mutt (SUSE-SU-2026:4818-1)	Nessus	SuSE Local Security Checks	Local	low
369487	AlmaLinux 9.2 [TuxCare] Security Update: mutt Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1792567671)	Nessus	Alma Linux Local Security Checks	Local	low
367233	openSUSE 16 Security Update : mutt (openSUSE-SU-2026:22099-1)	Nessus	SuSE Local Security Checks	Local	low
366745	SUSE SLES12 Security Update : mutt (SUSE-SU-2026:4685-1)	Nessus	SuSE Local Security Checks	Local	low
366332	Debian dsa-6563 : mutt - security update	Nessus	Debian Local Security Checks	Local	low
366238	AlmaLinux 9.6 [TuxCare] Security Update: mutt (ALMALINUX9.6:CLSA-2026:1792092200)	Nessus	Alma Linux Local Security Checks	Local	low
366234	Rocky Linux 9.6 [TuxCare] Security Update: mutt (ALMALINUX9.6:CLSA-2026:1792092200)	Nessus	Rocky Linux Local Security Checks	Local	low
365105	FreeBSD : mutt -- Heap out-of-bounds write via crafted Content-Header line (28c48cd9-e79a-4ad6-8e62-1317c2ec19a1)	Nessus	FreeBSD Local Security Checks	Local	low
474023	Alpine: multiple mutt packages: security update to 2.3.2-r1	Tenable Cloud Security	Alpine Linux Local Security Checks	Local	low
474023	Alpine: multiple mutt packages: security update to 2.3.2-r1	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	Local	low
474022	Alpine: multiple mutt packages: security update to 2.2.16-r1	Tenable Cloud Security	Alpine Linux Local Security Checks	Local	low
474022	Alpine: multiple mutt packages: security update to 2.2.16-r1	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	Local	low
364506	Slackware Linux 15.0 / current mutt Vulnerability (SSA:2026-282-01)	Nessus	Slackware Local Security Checks	Local	low
364244	Linux Distros Unpatched Vulnerability : CVE-2026-107570	Nessus	Misc.	Local	low

Detections

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CVE-2026-107570

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Tenable Plugins

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