RHSA-2026:48703 - Security Advisory

Topic

An update for vim is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. 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

Vim (Vi IMproved) is an updated and improved version of the vi editor.

Security Fix(es):

• vim: Vim: Denial of Service via stack out-of-bounds write in spell_soundfold_sofo() (CVE-2026-57455)
• vim: Vim: Arbitrary code execution via malicious docstrings in Python omni-completion (CVE-2026-57456)
• vim: Vim: Out-of-bounds Write in Spell File Word Count (CVE-2026-55693)
• vim: Vim: Arbitrary command execution via crafted tags file in C omni-completion (CVE-2026-59858)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64
• Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64
• Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64
• Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le
• Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x

Fixes

• BZ - 2492968 - CVE-2026-57455 vim: Vim: Denial of Service via stack out-of-bounds write in spell_soundfold_sofo()
• BZ - 2492972 - CVE-2026-57456 vim: Vim: Arbitrary code execution via malicious docstrings in Python omni-completion
• BZ - 2492980 - CVE-2026-55693 vim: Vim: Out-of-bounds Write in Spell File Word Count
• BZ - 2498868 - CVE-2026-59858 vim: Vim: Arbitrary command execution via crafted tags file in C omni-completion

CVEs

• CVE-2026-55693
• CVE-2026-57455
• CVE-2026-57456
• CVE-2026-59858

References

• https://access.redhat.com/security/updates/classification/#important