A vulnerability (CVE-2026-48962, CVSS 7.3 High) in the perl-IO-Compress library allows arbitrary code execution via an attacker-controlled output glob. The flaw affects Red Hat Enterprise Linux 10 systems using the vulnerable library version, though specific version ranges are not detailed in the advisory. Red Hat has released a security update rated Important to address this issue; administrators should apply the patch via the referenced Red Hat solution article.
Red Hat Product Errata RHSA-2026:30860 - Security Advisory Issued: 2026-06-29 Updated: 2026-06-29 RHSA-2026:30860 - 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 10. 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 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 - 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. 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Red Hat Enterprise Linux for x86_64 10 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 x86_64 perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 x86_64 perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for IBM z Systems 10 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 s390x perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 s390x perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for Power, little endian 10 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 ppc64le perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 ppc64le perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for ARM 64 10 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 aarch64 perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 aarch64 perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 aarch64 perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 s390x perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 ppc64le perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 x86_64 perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 x86_64 perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 aarch64 perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 ppc64le perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2 SRPM perl-IO-Compress-2.212-512.el10_2.1.src.rpm SHA-256: cda871e8e1f8e0c8c3e4602b929b3ab828765ceb3df5832b2863e7c97d932e01 s390x perl-IO-Compress-2.212-512.el10_2.1.noarch.rpm SHA-256: 2f1939a74dd6d2c0bd53d36f570a4b51783dea879f5184cd6745c5146bcc021f The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .