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…

Browse: All 2026 CVEs · All vendors

CVSS score: 7.8 High
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA KEV: Yes — actively exploited (added 2026-05-01, remediation due 2026-05-15)
Weakness (CWE): CWE-669, CWE-1288
Published: 2026-04-22
Last modified: 2026-07-28
NVD status: Analyzed

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.

Affected products

linux linux kernel
redhat openshift container platform
redhat enterprise linux
redhat enterprise linux aus
redhat enterprise linux eus
redhat enterprise linux tus
redhat enterprise linux update services for sap solutions
amazon amazon linux
canonical ubuntu linux
debian debian linux
opensuse leap
suse caas platform

Affected ranges per NVD CPE data; confirm exact versions in the vendor advisory.

Required action (CISA)

"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Federal remediation deadline: 2026-05-15.

How to prioritize this

This vulnerability is on the CISA KEV list, meaning it is being actively exploited — treat it as urgent regardless of the raw CVSS number. Use the live CVE lookup for the latest NVD data, and the CVSS 3.1 calculator to model your own environmental score.

References

FAQ

Is CVE-2026-31431 actively exploited?

Yes. CISA added CVE-2026-31431 to its Known Exploited Vulnerabilities (KEV) catalog on 2026-05-01, with a federal remediation deadline of 2026-05-15. A KEV listing means real-world exploitation is confirmed, so patching this should be prioritized above many higher-CVSS bugs that aren't being exploited.

What is the CVSS score of CVE-2026-31431?

CVE-2026-31431 has a CVSS base score of 7.8 (High). Its vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Related vulnerabilities

Data source: NVD & CISA KEV. Shown as-is; nothing added. Last generated from NVD data — re-check the live tool for updates.