Red Hat Product Errata RHSA-2026:30859 - Security Advisory Issued: 2026-06-29 Updated: 2026-06-29 RHSA-2026:30859 - Security Advisory Overview Updated Packages Synopsis Important: perl-IO-Compress security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for perl-IO-Compress is now available for Red Hat Enterprise Linux 9. 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 This distribution provides a Perl interface to allow reading and writing of compressed data created with the zlib and bzip2 libraries. IO-Compress supports reading and writing of bzip2, RFC 1950, RFC 1951, RFC 1952 (i.e. gzip) and zip files/buffers. The following modules used to be distributed separately, but are now included with the IO-Compress distribution: Compress-Zlib IO-Compress-Zlib IO-Compress-Bzip2 IO-Compress-Base Security Fix(es): perl-IO-Compress: perl-IO-Compress: Arbitrary code execution via attacker-controlled output glob (CVE-2026-48962) 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 9 x86_64 Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.8 x86_64 Red Hat Enterprise Linux for IBM z Systems 9 s390x Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.8 s390x Red Hat Enterprise Linux for Power, little endian 9 ppc64le Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.8 ppc64le Red Hat Enterprise Linux for ARM 64 9 aarch64 Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.8 aarch64 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.8 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.8 x86_64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.8 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.8 s390x Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.8 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.8 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.8 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.8 s390x Fixes BZ - 2481767 - CVE-2026-48962 perl-IO-Compress: perl-IO-Compress: Arbitrary code execution via attacker-controlled output glob CVEs CVE-2026-48962 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 9 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 x86_64 perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 x86_64 perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for IBM z Systems 9 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 s390x perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 s390x perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for Power, little endian 9 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 ppc64le perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 ppc64le perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for ARM 64 9 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 aarch64 perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 aarch64 perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 ppc64le perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 x86_64 perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 aarch64 perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 s390x perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 x86_64 perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 aarch64 perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 ppc64le perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.8 SRPM perl-IO-Compress-2.102-4.el9_8.1.src.rpm SHA-256: f0a4c6c84433612eaf0ba6cedca36033674c116694f14be53b8ed51b66947348 s390x perl-IO-Compress-2.102-4.el9_8.1.noarch.rpm SHA-256: 94abc00ad38cc3571ceea05d0ccaef3f4e38e11bd8260b845486afb94e16d345 The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .