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CVE-2026-68157

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: libceph: guard missing CRUSH type name lookup Localized read selection can walk a parent bucket whose name exists in the CRUSH…

Published Aug 10, 2026EPSS 0.70%

Overview

CVE-2026-68157 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

libceph: guard missing CRUSH type name lookup

Localized read selection can walk a parent bucket whose name exists in

the CRUSH map while its type has no matching entry in type_names.

get_immediate_parent() then dereferences a NULL type_cn and passes an

invalid pointer into strcmp(), causing a null-ptr-deref.

Skip such malformed parent buckets unless both the bucket name and type

name metadata are present. This keeps malformed hierarchy data from

crashing locality lookup and safely falls back to "not local".

[ idryomov: add WARN_ON_ONCE ]

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/3767c9f0c1bbd98dd25cb088356a0fc6c1f09f50Refgit.kernel.org/stable/c/4716a64b7cc2797741f7be4e283ace78a9dff37dRefgit.kernel.org/stable/c/6a4b75d90f0cfbf22c14742ab35a803bc13f36ecRefgit.kernel.org/stable/c/8ff579ac03d6e9d17d6d9c8443110167c14a382dRefgit.kernel.org/stable/c/bbeae12fda3384a90fbebc8a19ba9d33f85b5361Refgit.kernel.org/stable/c/c46d82c47afc968d6ee8ef4470fa2dd35b765c21Refgit.kernel.org/stable/c/cbfcba275326c8c7dae9acd8f4a0d4c316fdafb0Refgit.kernel.org/stable/c/db9cc9fd9660b2d69ee66f5a4cbec83c21a1c64d

How CyberStrike helps

Frequently asked questions

What is CVE-2026-68157?

CVE-2026-68157 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-68157?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-68157?

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-2026-68157?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-68157 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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