CVE-2026-31431

CVE-2026-31431 is a high-severity vulnerability in Redhat Openshift Container Platform with a CVSS 3.x base score of 7.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-05-01). The underlying weakness is classified as CWE-669.

Key facts

• Severity: High (CVSS 3.x base score 7.8)
• EPSS exploit prediction: 96% (100th percentile)
• Actively exploited: Yes — listed in CISA KEV (added 2026-05-01)
• EU (EUVD) id: EUVD-2026-24639
• EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2026-05-01)
• Weakness: CWE-669
• Affected product: Redhat Openshift Container Platform
• Published: 2026-04-22
• Last modified: 2026-07-01

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly.

Frequently asked questions

What is CVE-2026-31431?

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly.

How severe is CVE-2026-31431?

CVE-2026-31431 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-31431 being actively exploited?

Yes. CVE-2026-31431 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-05-01, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2026-31431?

CVE-2026-31431 primarily affects Redhat Openshift Container Platform. In total, 184 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-31431?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2026-31431 have an EU (EUVD) identifier?

Yes. CVE-2026-31431 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24639. It is also flagged as exploited in the EUVD (since 2026-05-01).

When was CVE-2026-31431 published?

CVE-2026-31431 was published on 2026-04-22 and last updated on 2026-07-01.

References

• https://git.kernel.org/stable/c/19d43105a97be0810edbda875f2cd03f30dc130c
• https://git.kernel.org/stable/c/3115af9644c342b356f3f07a4dd1c8905cd9a6fc
• https://git.kernel.org/stable/c/893d22e0135fa394db81df88697fba6032747667
• https://git.kernel.org/stable/c/8b88d99341f139e23bdeb1027a2a3ae10d341d82
• https://git.kernel.org/stable/c/961cfa271a918ad4ae452420e7c303149002875b
• https://git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5
• https://git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4f6237
• https://git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8
• http://www.openwall.com/lists/oss-security/2026/04/29/23
• http://www.openwall.com/lists/oss-security/2026/04/29/25
• http://www.openwall.com/lists/oss-security/2026/04/29/26
• http://www.openwall.com/lists/oss-security/2026/04/30/10
• http://www.openwall.com/lists/oss-security/2026/04/30/11
• http://www.openwall.com/lists/oss-security/2026/04/30/12
• http://www.openwall.com/lists/oss-security/2026/04/30/14
• http://www.openwall.com/lists/oss-security/2026/04/30/15
• http://www.openwall.com/lists/oss-security/2026/04/30/16
• http://www.openwall.com/lists/oss-security/2026/04/30/17
• http://www.openwall.com/lists/oss-security/2026/04/30/18
• http://www.openwall.com/lists/oss-security/2026/04/30/2
• http://www.openwall.com/lists/oss-security/2026/04/30/20
• http://www.openwall.com/lists/oss-security/2026/04/30/5
• http://www.openwall.com/lists/oss-security/2026/04/30/6
• http://www.openwall.com/lists/oss-security/2026/05/01/10
• http://www.openwall.com/lists/oss-security/2026/05/01/12
• http://www.openwall.com/lists/oss-security/2026/05/01/15
• http://www.openwall.com/lists/oss-security/2026/05/01/16
• http://www.openwall.com/lists/oss-security/2026/05/01/17
• http://www.openwall.com/lists/oss-security/2026/05/01/18
• http://www.openwall.com/lists/oss-security/2026/05/01/2

Affected products (184)

• cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
• cpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_aus:8.4:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_aus:8.6:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_eus:9.4:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_eus:9.6:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_eus:10.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_tus:8.6:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_tus:8.8:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.8:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:9.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:9.2:*:*:*:*:*:*:*
• cpe:2.3:o:amazon:amazon_linux:-:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:-:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:13.0:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:leap:15.3:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:leap:15.5:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:leap:15.6:*:*:*:*:*:*:*
• cpe:2.3:a:suse:caas_platform:4.0:*:*:*:*:*:*:*
• cpe:2.3:a:suse:enterprise_storage:6.0:*:*:*:*:*:*:*
• cpe:2.3:a:suse:enterprise_storage:7.0:*:*:*:*:*:*:*
• cpe:2.3:a:suse:enterprise_storage:7.1:*:*:*:*:*:*:*
• cpe:2.3:a:suse:manager_proxy:4.0:*:*:*:*:*:*:*
• cpe:2.3:a:suse:manager_proxy:4.1:*:*:*:*:*:*:*
• cpe:2.3:a:suse:manager_proxy:4.2:*:*:*:*:*:*:*

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