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CVE-2026-43068

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid allocate block from corrupted group in ext4_mb_find_by_goal() There's issue as follows: ...

Published May 5, 2026CWE-401EPSS 0.16%

Overview

CVE-2026-43068 is a medium-severity vulnerability. It was published on May 5, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

ext4: avoid allocate block from corrupted group in ext4_mb_find_by_goal()

There's issue as follows:

...

EXT4-fs (mmcblk0p1): Delayed block allocation failed for inode 206 at logical offset 0 with max blocks 1 with error 117

EXT4-fs (mmcblk0p1): This should not happen!! Data will be lost

EXT4-fs (mmcblk0p1): Delayed block allocation failed for inode 206 at logical offset 0 with max blocks 1 with error 117

EXT4-fs (mmcblk0p1): This should not happen!! Data will be lost

EXT4-fs (mmcblk0p1): Delayed block allocation failed for inode 206 at logical offset 0 with max blocks 1 with error 117

EXT4-fs (mmcblk0p1): This should not happen!! Data will be lost

EXT4-fs (mmcblk0p1): Delayed block allocation failed for inode 206 at logical offset 0 with max blocks 1 with error 117

EXT4-fs (mmcblk0p1): This should not happen!! Data will be lost

EXT4-fs (mmcblk0p1): Delayed block allocation failed for inode 2243 at logical offset

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/0b84571c886719823d537f05f4f07cad6357c4b7Refgit.kernel.org/stable/c/1895f7904be71c48f1e6f338b28f24dabd6b8aebRefgit.kernel.org/stable/c/1c0d7c4cde38a887c6d74e0c89ddb25226943c78Refgit.kernel.org/stable/c/2d31a5073f86a177edf44015e0dedb0c47cfd6d8Refgit.kernel.org/stable/c/46066e3a06647c5b186cc6334409722622d05c44Refgit.kernel.org/stable/c/9370207b36d26e45a8c8ef0500706d37036edd6bRefgit.kernel.org/stable/c/fea6b2e250ff48f10d166011b57a8516ae5438c9Refgit.kernel.org/stable/c/ffc0a282462d45fee5957621be5afa29752f3b6d

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43068?

CVE-2026-43068 is a medium-severity vulnerability. It was published on May 5, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-43068?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-43068?

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-2026-43068?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43068 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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