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Vulnerabilities of Red Hat Red Hat Enterprise Linux AppStream (v. 9)

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CVE Summary Score Published
CVE-2026-28942 A use-after-free issue was addressed with improved memory management 6.5 Medium May 11, 2026
CVE-2026-28902 The issue was addressed with improved memory handling 6.5 Medium May 11, 2026
CVE-2026-28847 The issue was addressed with improved memory handling 8.8 High May 11, 2026
CVE-2026-28955 The issue was addressed with improved memory handling 8.8 High May 11, 2026
CVE-2026-4892 A heap-based out-of-bounds write vulnerability in the DHCPv6 implementation of dnsmasq allows local attackers to execute… 8.4 High May 11, 2026
CVE-2026-4891 A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a… 5.3 Medium May 11, 2026
CVE-2026-4890 A Denial of Service (DoS) vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of… 7.5 High May 11, 2026
CVE-2026-4802 Cockpit: cockpit: arbitrary command execution via crafted links in system logs ui 8.0 High May 11, 2026
CVE-2026-45186 In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via… 2.9 Low May 10, 2026
CVE-2026-6722 In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the SOAP… 9.5 Critical May 10, 2026
CVE-2026-7262 In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when a SOAP… 2.9 Low May 10, 2026
CVE-2026-7568 In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the metaphone()… 6.3 Medium May 10, 2026
CVE-2026-42258 Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby 5.8 Medium May 9, 2026
CVE-2026-42246 Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby 7.6 High May 9, 2026
CVE-2026-43329 In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: strictly check for maximum… 7.8 High May 8, 2026
CVE-2026-43284 In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb… 8.8 High May 8, 2026
CVE-2026-33811 When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a… 7.5 High May 7, 2026
CVE-2026-8094 Other issue in the WebRTC component 9.8 Critical May 7, 2026
CVE-2026-8092 Memory safety bugs present in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 8.1 High May 7, 2026
CVE-2026-8090 Use-after-free in the DOM: Networking component 7.3 High May 7, 2026
CVE-2026-42010 Gnutls: gnutls: authentication bypass via nul character in username 7.1 High May 7, 2026
CVE-2026-42216 OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for… 8.8 High May 7, 2026
CVE-2026-41142 OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for… 8.8 High May 7, 2026
CVE-2026-43198 In the Linux kernel, the following vulnerability has been resolved: tcp: fix potential race in tcp_v6_syn_recv_sock()… 9.8 Critical May 6, 2026
CVE-2026-43125 In the Linux kernel, the following vulnerability has been resolved: dlm: validate length in dlm_search_rsb_tree The… 9.8 Critical May 6, 2026

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