Is CVE-2026-46046 in the CISA KEV catalog?

No. CVE-2026-46046 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-46046?

CVE-2026-46046 has a CVSS v3 base score of 5.5 (Moderate).

What is the EPSS score for CVE-2026-46046?

CVE-2026-46046 has an EPSS score of 0.12% (2th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-46046?

Upgrade linux on debian 11 to 5.10.259-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-46046

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() The commit c8e008b60492 ("ext4: ignore xattrs past end") introduced a refcount leak in when block_csum is false. ext4_xattr_inode_dec_ref_all() calls ext4_get_inode_loc() to get iloc.bh, but never releases it with brelse().

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.259-1CVE-2026-46046

Fixed in:6.1.176-1CVE-2026-46046

Fixed in:6.12.86-1CVE-2026-46046

Fixed in:7.0.4-1CVE-2026-46046

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.12%probability of exploitation in 30 days

2ndpercentile

Low risk: more likely to be exploited than 2% of all known CVEs.

References

Patch8

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-16.