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Multiple Vulnerabilities in Mutt Affecting SUSE and openSUSE Users

Multiple Vulnerabilities in Mutt Affecting SUSE and openSUSE Users

First seen 9 Jun 2026, 02:56 UTC • •
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ThreatCluster AI
ThreatCluster •June 10, 2026 at 02:29 UTC
  • •SUSE and openSUSE released patches for Mutt addressing multiple vulnerabilities.
  • •Key CVEs include CVE-2026-43859 to CVE-2026-43864, all published on 2026-05-04.
  • •Users are urged to apply patches immediately to mitigate potential risks.

SUSE and openSUSE have released security updates for the Mutt email client addressing multiple vulnerabilities. The updates fix issues including a NULL pointer dereference, an infinite loop, and improper handling of IMAP authentication. Key vulnerabilities include CVE-2026-43859 through CVE-2026-43864, all published on 2026-05-04. These vulnerabilities could potentially lead to denial of service or unauthorized access if exploited. Users are advised to apply the patches using recommended installation methods like YaST or zypper. The updates were released on 2026-06-08, and both advisories emphasize the importance of immediate patching. The vulnerabilities have been rated as moderate in severity.

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Timeline

2026-05-04
Multiple CVEs published for Mutt
CVE-2026-43859 to CVE-2026-43864 were published, detailing various vulnerabilities in the Mutt email client.
Linuxsecurity
2026-05-04
CVE-2026-43862 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-05-04
CVE-2026-43859 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-05-04
CVE-2026-43863 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-05-04
CVE-2026-43861 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-05-04
CVE-2026-43864 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-05-04
CVE-2026-43860 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-06-08
SUSE releases security updates for Mutt
SUSE issued updates addressing multiple vulnerabilities in Mutt, urging users to apply patches immediately.
Linuxsecurity
2026-06-08
openSUSE releases security updates for Mutt
openSUSE also issued updates for Mutt, fixing the same vulnerabilities as SUSE, with a focus on immediate patching.
Linuxsecurity

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