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CVE-2026-46070

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: md/raid5: validate payload size before accessing journal metadata r5c_recovery_analyze_meta_block() and r5l_recovery_verify_dat…

Published May 27, 2026CWE-787EPSS 0.13%

Overview

CVE-2026-46070 is a high-severity vulnerability. It was published on May 27, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

md/raid5: validate payload size before accessing journal metadata

r5c_recovery_analyze_meta_block() and

r5l_recovery_verify_data_checksum_for_mb() iterate over payloads in a

journal metadata block using on-disk payload size fields without

validating them against the remaining space in the metadata block.

A corrupted journal contains payload sizes extending beyond the PAGE_SIZE

boundary can cause out-of-bounds reads when accessing payload fields or

computing offsets.

Add bounds validation for each payload type to ensure the full payload

fits within meta_size before processing.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/28d3ff7109c66e99dc1b7cddacb5c760849620efRefgit.kernel.org/stable/c/33698bd1b2db9764a29df7751533d33967ff5c98Refgit.kernel.org/stable/c/406aa86394ead347c47428fb51b6359bdaa2257dRefgit.kernel.org/stable/c/73ce72edd113374801045924d4417199963f73a3Refgit.kernel.org/stable/c/b0cc3ae97e893bf54bbce447f4e9fd2e0b88bff9Refgit.kernel.org/stable/c/c3a1cf78bd1bbb51b2cc5189b4743056553c1e0eRefgit.kernel.org/stable/c/c96c6f01d84b5c67db1bf1cc8591c0b7146826fcRefgit.kernel.org/stable/c/ef4851d8324fd978ca1ff9ec76a275438f887743

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46070?

CVE-2026-46070 is a high-severity vulnerability. It was published on May 27, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-46070?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-46070?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-46070?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46070 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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