RH
Product
Red Hat OpenShift Container Platform 4.21
by Red Hat · last CVE Oct 14, 2026
On CISA KEVExploited in the wild
79
CVEs
1
On KEV
10.0
Max CVSS
6
New 30D
Severity mix
Critical 13High 57Medium 9Low 0
Watch

Add Red Hat OpenShift Container Platform 4.21 to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-31431
In wildKEV
7.8
98%
Apr 22
crypto: algif_aead - Revert to operating out-of-place
Affected: All versions, or not specified
CVE-2026-104795
8.8
0%
Oct 14
Insights-runtime-extractor: insights-runtime-extractor: container escape via privileged binary execution
Affected: All versions, or not specified
CVE-2026-14474
8.8
1%
Jul 7
Sssd: sssd: sudo ldap provider searches entire directory tree for sudorole objects by default, enabling privilege escalation
Affected: All versions, or not specified
CVE-2026-1784
8.8
0%
Jun 2
Ose-cluster-ingress-operator: remote code execution through haproxy configuration injection
Affected: All versions, or not specified
CVE-2026-43503
8.8
2%
May 23
net: skbuff: propagate shared-frag marker through frag-transfer helpers
Affected: All versions, or not specified
CVE-2026-44293
8.8
0%
May 13
protobufjs: Code injection through bytes field defaults in generated toObject code
Affected: All versions, or not specified
CVE-2026-43284
8.8
94%
May 8
xfrm: esp: avoid in-place decrypt on shared skb frags
Affected: All versions, or not specified
CVE-2026-43112
8.8
0%
May 6
fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath
Affected: All versions, or not specified
CVE-2026-44494
8.7
1%
Jun 11
Axios: Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
Affected: All versions, or not specified
CVE-2026-44492
8.6
12%
Jun 11
Axios: shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)
Affected: All versions, or not specified
CVE-2026-49332
8.5
1%
Jul 28
Openshift/oauth-proxy: openshift/oauth-proxy: underscore header smuggling enables identity impersonation on wsgi/php upstreams
Affected: All versions, or not specified
CVE-2026-9277
8.1
1%
May 22
shell-quote `quote()` does not validate object-token shapes, allowing command injection via line terminators in `.op`
Affected: All versions, or not specified
CVE-2026-14476
8.0
1%
Jul 7
Sssd: sssd: gpo cache path traversal via unsanitized gpcfilesyspath allows kerberos authentication bypass
Affected: All versions, or not specified
CVE-2026-15809
7.8
0%
Jul 15
Github.com/cri-o/cri-o: fix bypass for cve-2022-4318 — /etc/passwd injection via home env
Affected: All versions, or not specified
CVE-2026-46331
7.8
1%
Jun 16
net/sched: fix pedit partial COW leading to page cache corruption
Affected: All versions, or not specified
CVE-2026-46323
7.8
0%
Jun 9
net: gro: don't merge zcopy skbs
Affected: All versions, or not specified
CVE-2026-11332
7.8
0%
Jun 5
Ansible-core: argument injection in ansible-galaxy role install leads to arbitrary code execution
Affected: All versions, or not specified
CVE-2026-46300
7.8
10%
May 23
net: skbuff: preserve shared-frag marker during coalescing
Affected: All versions, or not specified
CVE-2026-43329
7.8
0%
May 8
netfilter: flowtable: strictly check for maximum number of actions
Affected: All versions, or not specified
CVE-2026-75888
7.7
0%
Oct 12
Openshift/console: openshift/console: authenticated ssrf via helm chart url fetch
Affected: All versions, or not specified
CVE-2026-93017
7.7
0%
Oct 8
Insights-operator: gather serviceaccount has cluster-wide secret read plus nodes/proxy and cluster-reader
Affected: All versions, or not specified
CVE-2026-44495
7.7
1%
Jun 11
Axios: Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge
Affected: All versions, or not specified
CVE-2026-16313
7.6
0%
Jul 28
Sg3_utils: sg3_utils: arbitrary command execution via udev property injection in sg_inq --export
Affected: All versions, or not specified
CVE-2026-75887
7.5
1%
Sep 23
Openshift/console: openshift/console: unauthenticated path traversal in i18n locale handler
Affected: All versions, or not specified
CVE-2026-49329
7.5
1%
Sep 1
Openshift/oauth-server: openshift/oauth-server: quadratic-time dos via accept-language header underscore bypass on unauthenticated login endpoints
Affected: All versions, or not specified
CVE-2026-15816
7.5
0%
Aug 7
Dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die()
Affected: All versions, or not specified
CVE-2026-14164
7.5
1%
Jun 30
Libarchive: double-free vulnerability in rar5 decompression logic via dangling filtered_buf pointer in init_unpack()
Affected: All versions, or not specified
CVE-2026-13676
7.5
1%
Jun 29
fast-uri vulnerable to host confusion via failed IDN canonicalization
Affected: All versions, or not specified
CVE-2026-12143
7.5
1%
Jun 12
form-data does not escape CR/LF/quote in multipart field names and filenames (CRLF injection)
Affected: All versions, or not specified
CVE-2026-44486
7.5
1%
Jun 11
Axios: Proxy-Authorization header leaks to redirect target when proxy is re-evaluated to direct connection
Affected: All versions, or not specified
CVE-2026-44487
7.5
1%
Jun 11
Axios: Proxy-Authorization Credential Leak to Origin Server Across HTTP-to-HTTPS Redirect in Axios Node.js HTTP Adapter
Affected: All versions, or not specified
CVE-2026-44488
7.5
1%
Jun 11
Axios: Allocation of Resources Without Limits or Throttling in axios
Affected: All versions, or not specified
CVE-2026-44496
7.5
5%
Jun 11
Axios: Regular Expression Denial of Service (ReDoS) via Cookie Name Injection
Affected: All versions, or not specified
CVE-2026-46579
7.5
0%
May 29
Openshift/router: openshift/router: mtls client certificate spoofing via unstripped x-ssl-client headers on http frontend
Affected: All versions, or not specified
CVE-2026-39829
7.5
0%
May 22
Invoking pathological RSA/DSA parameters may cause DoS in golang.org/x/crypto/ssh
Affected: All versions, or not specified
CVE-2026-42009
7.5
1%
May 18
Gnutls: gnutls: denial of service via dtls packet reordering vulnerability
Affected: All versions, or not specified
CVE-2026-45736
7.5
1%
May 15
ws: Uninitialized memory disclosure
Affected: All versions, or not specified
CVE-2026-39820
7.5
1%
May 7
Quadratic string concatentation in consumeComment in net/mail
Affected: All versions, or not specified
CVE-2026-42499
7.5
1%
May 7
Quadratic string concatenation in consumePhrase in net/mail
Affected: All versions, or not specified
CVE-2026-33814
7.5
1%
May 7
Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net
Affected: All versions, or not specified
CVE-2026-41674
7.5
1%
May 7
xmldom: XML injection through unvalidated DocumentType serialization
Affected: All versions, or not specified
CVE-2026-6322
7.5
1%
May 5
fast-uri vulnerable to host confusion via percent-encoded authority delimiters
Affected: All versions, or not specified
CVE-2026-42154
7.5
1%
May 4
Prometheus: remote read endpoint allows denial of service via crafted snappy payload
Affected: All versions, or not specified
CVE-2026-42151
7.5
0%
May 4
Prometheus Azure AD remote write OAuth client secret exposed via config API
Affected: All versions, or not specified
CVE-2026-43003
7.5
1%
May 1
An issue was discovered in OpenStack ironic-python-agent 1.0.0 through 11.5.0
Affected: All versions, or not specified
CVE-2026-42039
7.5
1%
Apr 24
Axios: unbounded recursion in toFormData causes DoS via deeply nested request data
Affected: All versions, or not specified
CVE-2026-40895
7.5
0%
Apr 21
follow-redirects: Custom Authentication Headers Leaked to Cross-Domain Redirect Targets
Affected: All versions, or not specified
CVE-2026-32283
7.5
1%
Apr 8
Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls
Affected: All versions, or not specified
CVE-2026-34986
7.5
1%
Apr 6
Go JOSE affect by a panic in JWE decryption
Affected: All versions, or not specified
CVE-2026-50236
7.4
0%
Aug 11
Openshift/console: authenticated ssrf with full response reflection and path neutralization via dev console webhook helpers in openshift console
Affected: All versions, or not specified
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