RHSA-2026:85959: Moderate: fetchmail security update

Synopsis Moderate: fetchmail security update Type/Severity Security Advisory: Moderate Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for fetchmail is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description Fetchmail is a remote mail retrieval and forwarding utility intended for use over on-demand TCP/IP links, like SLIP or PPP connections. Fetchmail supports every remote-mail protocol currently in use on the Internet (POP2, POP3, RPOP, APOP, KPOP, all IMAPs, ESMTP ETRN, IPv6, and IPSEC) for retrieval. Then Fetchmail forwards the mail through SMTP so the user can read it through their favorite mail client. Security Fix(es): - fetchmail: fetchmail: stack-based buffer overflow in NTLM authentication (fetchmail-SA-2026-01) (CVE-2026-94184) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Affected Products - Red Hat Enterprise Linux for x86_64 10 x86_64 - Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 x86_64 - Red Hat Enterprise Linux for IBM z Systems 10 s390x - Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 s390x - Red Hat Enterprise Linux for Power, little endian 10 ppc64le - Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 ppc64le - Red Hat Enterprise Linux for ARM 64 10 aarch64 - Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 aarch64 - Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 aarch64 - Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 s390x - Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 ppc64le - Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 x86_64 - Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 x86_64 - Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 aarch64 - Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 ppc64le - Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2 s390x Fixes - BZ - 2537395 - CVE-2026-94184 fetchmail: fetchmail: stack-based buffer overflow in NTLM authentication (fetchmail-SA-2026-01) Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 10 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | x86_64 | | fetchmail-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 318d86fb48fddcf308110ee4a6ce0c829227ac5b3ebc28788c222422bd393fe1 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 56565a18bf315718e4f525b43789aa8a3a1ff47e9b376bce0687197744d3e0a4 | | fetchmail-debugsource-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 18c6c43b3d784bc684155c0c27df99e3bb7276e4d5899587b502cee47c9eecc1 | Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | x86_64 | | fetchmail-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 318d86fb48fddcf308110ee4a6ce0c829227ac5b3ebc28788c222422bd393fe1 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 56565a18bf315718e4f525b43789aa8a3a1ff47e9b376bce0687197744d3e0a4 | | fetchmail-debugsource-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 18c6c43b3d784bc684155c0c27df99e3bb7276e4d5899587b502cee47c9eecc1 | Red Hat Enterprise Linux for IBM z Systems 10 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | s390x | | fetchmail-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: 1a83908b3c98731ee7ef8c5eca56398f1767f9ab53ab563145a632f71ecb6654 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: e87c12b81cae57385fd18927e506d6de4e876d0a3d1d41b72c22fb9ef3028c19 | | fetchmail-debugsource-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: b98b30e2ecbee2bbdadd7dab44537cbef7fac66b9ad097012912b185ae9205a1 | Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | s390x | | fetchmail-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: 1a83908b3c98731ee7ef8c5eca56398f1767f9ab53ab563145a632f71ecb6654 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: e87c12b81cae57385fd18927e506d6de4e876d0a3d1d41b72c22fb9ef3028c19 | | fetchmail-debugsource-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: b98b30e2ecbee2bbdadd7dab44537cbef7fac66b9ad097012912b185ae9205a1 | Red Hat Enterprise Linux for Power, little endian 10 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | ppc64le | | fetchmail-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 76e443a1d98e51cf0e082cfbc1c0e35bb566c9c7769d6765079bec47a455c551 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 4de7306034b2ed9bbf8a9e0abc113ca8a6f0f852c8bae23958aabca3a305610a | | fetchmail-debugsource-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 99ec96eb27373925eeeb13a00fa04089edf433c38749298383b442ec58c90e7b | Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | ppc64le | | fetchmail-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 76e443a1d98e51cf0e082cfbc1c0e35bb566c9c7769d6765079bec47a455c551 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 4de7306034b2ed9bbf8a9e0abc113ca8a6f0f852c8bae23958aabca3a305610a | | fetchmail-debugsource-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 99ec96eb27373925eeeb13a00fa04089edf433c38749298383b442ec58c90e7b | Red Hat Enterprise Linux for ARM 64 10 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | aarch64 | | fetchmail-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: 3decf5965a789f3846cb133a9c6dce02c6e6347e3917f9ecdd12c6b6ef8d371c | | fetchmail-debuginfo-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: 5612192493d9c6ab59c109774d27c891efe632265549bc29426226970a51962e | | fetchmail-debugsource-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: d311e962234923e7a44bd495ca3fcb6e0282477d25332b79ddf43156ee8874d7 | Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | aarch64 | | fetchmail-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: 3decf5965a789f3846cb133a9c6dce02c6e6347e3917f9ecdd12c6b6ef8d371c | | fetchmail-debuginfo-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: 5612192493d9c6ab59c109774d27c891efe632265549bc29426226970a51962e | | fetchmail-debugsource-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: d311e962234923e7a44bd495ca3fcb6e0282477d25332b79ddf43156ee8874d7 | Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | aarch64 | | fetchmail-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: 3decf5965a789f3846cb133a9c6dce02c6e6347e3917f9ecdd12c6b6ef8d371c | | fetchmail-debuginfo-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: 5612192493d9c6ab59c109774d27c891efe632265549bc29426226970a51962e | | fetchmail-debugsource-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: d311e962234923e7a44bd495ca3fcb6e0282477d25332b79ddf43156ee8874d7 | Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | s390x | | fetchmail-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: 1a83908b3c98731ee7ef8c5eca56398f1767f9ab53ab563145a632f71ecb6654 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: e87c12b81cae57385fd18927e506d6de4e876d0a3d1d41b72c22fb9ef3028c19 | | fetchmail-debugsource-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: b98b30e2ecbee2bbdadd7dab44537cbef7fac66b9ad097012912b185ae9205a1 | Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | ppc64le | | fetchmail-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 76e443a1d98e51cf0e082cfbc1c0e35bb566c9c7769d6765079bec47a455c551 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 4de7306034b2ed9bbf8a9e0abc113ca8a6f0f852c8bae23958aabca3a305610a | | fetchmail-debugsource-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 99ec96eb27373925eeeb13a00fa04089edf433c38749298383b442ec58c90e7b | Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | x86_64 | | fetchmail-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 318d86fb48fddcf308110ee4a6ce0c829227ac5b3ebc28788c222422bd393fe1 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 56565a18bf315718e4f525b43789aa8a3a1ff47e9b376bce0687197744d3e0a4 | | fetchmail-debugsource-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 18c6c43b3d784bc684155c0c27df99e3bb7276e4d5899587b502cee47c9eecc1 | Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | x86_64 | | fetchmail-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 318d86fb48fddcf308110ee4a6ce0c829227ac5b3ebc28788c222422bd393fe1 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 56565a18bf315718e4f525b43789aa8a3a1ff47e9b376bce0687197744d3e0a4 | | fetchmail-debugsource-6.4.38-3.el10_2.1.x86_64.rpm | SHA-256: 18c6c43b3d784bc684155c0c27df99e3bb7276e4d5899587b502cee47c9eecc1 | Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | aarch64 | | fetchmail-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: 3decf5965a789f3846cb133a9c6dce02c6e6347e3917f9ecdd12c6b6ef8d371c | | fetchmail-debuginfo-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: 5612192493d9c6ab59c109774d27c891efe632265549bc29426226970a51962e | | fetchmail-debugsource-6.4.38-3.el10_2.1.aarch64.rpm | SHA-256: d311e962234923e7a44bd495ca3fcb6e0282477d25332b79ddf43156ee8874d7 | Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | ppc64le | | fetchmail-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 76e443a1d98e51cf0e082cfbc1c0e35bb566c9c7769d6765079bec47a455c551 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 4de7306034b2ed9bbf8a9e0abc113ca8a6f0f852c8bae23958aabca3a305610a | | fetchmail-debugsource-6.4.38-3.el10_2.1.ppc64le.rpm | SHA-256: 99ec96eb27373925eeeb13a00fa04089edf433c38749298383b442ec58c90e7b | Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2 | SRPM | | fetchmail-6.4.38-3.el10_2.1.src.rpm | SHA-256: 67750b2a79a46a2c9270084fe438bef9e96f36ee4687b8bbca902a4820177fda | | s390x | | fetchmail-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: 1a83908b3c98731ee7ef8c5eca56398f1767f9ab53ab563145a632f71ecb6654 | | fetchmail-debuginfo-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: e87c12b81cae57385fd18927e506d6de4e876d0a3d1d41b72c22fb9ef3028c19 | | fetchmail-debugsource-6.4.38-3.el10_2.1.s390x.rpm | SHA-256: b98b30e2ecbee2bbdadd7dab44537cbef7fac66b9ad097012912b185ae9205a1 |