What is CVE-2026-31713?

CVE-2026-31713 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.18 onward and patched in 6.18.25, 7.0.2 and 7.1-rc1. CVE-2026-31713 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-31713?

CVE-2026-31713 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-31713?

Yes, CVE-2026-31713 has been patched. Fixed versions include 6.18.25, 7.0.2 and 7.1-rc1. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-31713 actively exploited?

CVE-2026-31713 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-31713

Medium

In the Linux kernel, the following vulnerability has been resolved: fuse: abort on fatal signal during sync init When sync init is used and the server exits for some reason (error, crash) while processing FUSE_INIT, the filesystem creation will hang. The reason is that while all other threads will exit, the mounting thread (or process) will keep the device fd open, which will prevent an abort from happening. This is a regression from the async mount case, where the mount was done first, and the FUSE_INIT processing afterwards, in which case there's no such recursive syscall keeping the fd open.

Package Linux Kernel

Published 2026-05-01

Last modified 2026-05-06

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 6.18 and later are affected. Fixed in 6.18.25, 7.0.2, 7.1-rc1 and their respective stable series.

Affected from

≥ 6.18

Fixed in

✓ 6.18.25 6.18.x ✓ 7.0.2 7.0.x ✓ 7.1-rc1

References

The following references provide additional information about CVE-2026-31713 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/0c7fca880a40a209a9c92be14143996d14b93ff6
Patch
Kernel patch commit
https://git.kernel.org/stable/c/204aa22a686bfee48daca7db620c1e017615f2ff
Patch
Kernel patch commit
https://git.kernel.org/stable/c/300e812b882a174dca675d8028684001ad5826bc
Patch

Details

CVE ID CVE-2026-31713

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-05-01

Modified 2026-05-06

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-31713?

CVE-2026-31713 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.18 onward and has been patched in 6.18.25, 7.0.2 and 7.1-rc1. CVE-2026-31713 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-31713?

CVE-2026-31713 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-31713?

Yes — CVE-2026-31713 has been patched. Fixed versions include 6.18.25, 7.0.2 and 7.1-rc1. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-31713 actively exploited?

No — CVE-2026-31713 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.