Vulnerabilities of Red Hat Red Hat OpenShift Container Platform 4.18

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CVE list

CVE	Summary	Score	Published
CVE-2026-27145	(*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name…	6.5 Medium	Jun 2, 2026
CVE-2026-1784	The Route OpenShift resource allows to define routes to make pods reachable at a subdomain through HAProxy	8.8 High	Jun 2, 2026
CVE-2026-46243	In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.spnego…	7.1 High	Jun 1, 2026
CVE-2026-42965	Openshift/router: openshift/router: cloud metadata ssrf via fqdn-typed endpointslice bypasses destination validation	7.7 High	May 29, 2026
CVE-2026-46579	A flaw was found in the OpenShift Router	7.4 High	May 29, 2026
CVE-2026-4408	Samba: remote code execution in samr	9.0 Critical	May 28, 2026
CVE-2026-1933	Samba: missing access check on reparse point operations	7.1 High	May 27, 2026
CVE-2026-2340	Samba: vfs_worm does not block directory modification	6.5 Medium	May 27, 2026
CVE-2026-3012	Samba: group policy certificate enrollment uses http:// without validation	8.0 High	May 27, 2026
CVE-2026-42013	Gnutls: gnutls: certificate validation bypass due to oversized subject alternative name	8.2 High	May 26, 2026
CVE-2026-5260	Gnutls: gnutls: information disclosure via heap overread in rsa key exchange	8.2 High	May 26, 2026
CVE-2026-48864	Libsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data	7.8 High	May 26, 2026
CVE-2026-46300	Exploited Linux Kernel Missing Initialization of a Variable Vulnerability	7.8 High	May 23, 2026
CVE-2026-43503	In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through…	8.8 High	May 23, 2026
CVE-2026-9277	shell-quote's `quote()` function did not validate object-token inputs against the operator model used by `parse()`	8.1 High	May 22, 2026
CVE-2026-42009	Gnutls: gnutls: denial of service via dtls packet reordering vulnerability	7.5 High	May 18, 2026
CVE-2026-44293	protobufjs compiles protobuf definitions into JavaScript (JS) functions	7.7 High	May 13, 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-2026-39820	Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion…	7.5 High	May 7, 2026
CVE-2026-42499	Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322	7.5 High	May 7, 2026
CVE-2026-42011	Gnutls: gnutls: security bypass due to incorrect name constraint handling	7.4 High	May 7, 2026
CVE-2026-42010	Gnutls: gnutls: authentication bypass via nul character in username	7.1 High	May 7, 2026
CVE-2026-43112	In the Linux kernel, the following vulnerability has been resolved: fs/smb/client: fix out-of-bounds read in…	8.8 High	May 6, 2026

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