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CVE-2026-80713

8.4 · HIGH

In the Linux kernel, the following vulnerability has been resolved: io_uring: preserve task restrictions across exec Per-task restrictions apply to all rings created by a task.

Published Aug 28, 2026EPSS 0.16%

Overview

CVE-2026-80713 is a high-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, 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:

io_uring: preserve task restrictions across exec

Per-task restrictions apply to all rings created by a task. Once

installed, they should not be dropped across exec.

For a task that has used io_uring, the exec cancellation path calls

__io_uring_free(). This frees both the task context and the per-task

restriction, so a ring created after exec is unrestricted.

Split task context cleanup into io_uring_free_tctx(), and use it from

the exec cancellation path. Keep __io_uring_free() for final task

cleanup, where both the context and restriction are released.

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/bc0e8faf90e776a2f1f3967a04e8091e6bdb4977Refgit.kernel.org/stable/c/fcef9325afeecced693a7438e975e4a3f8e2716f

How CyberStrike helps

Frequently asked questions

What is CVE-2026-80713?

CVE-2026-80713 is a high-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2026-80713?

This vulnerability has a CVSS 3.1 base score of 8.4, 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-2026-80713?

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-2026-80713?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-80713 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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