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CVE-2026-46046VulnerabilityPublished Updated

ext4_xattr_inode_dec_ref_all() · ext4: fix missing brelse()

Affects MicrosoftSource GCVE Database

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Not known to be exploited.

Data as of 30 Oct 2026, 06:59 UTC

Severity
Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Microsoft Security Response Center MicrosoftAffected
  • =3.0
  • Microsoft
  • Azure Linux
  • 3.0
  • Azure Linux 3.0
  • kernel
Fixed in–

AI-suggested

Users should monitor Microsoft Security Response Center advisories for updates regarding this vulnerability.

Description

CVE-2026-46046 is a vulnerability related to the ext4 filesystem implementation, specifically addressing a missing brelse() call in the ext4_xattr_inode_dec_ref_all() function. The provided information does not include technical details beyond this fix indication, nor does it specify the impact or exploitation methods. There is no CVSS score or detailed vendor advisory content available. The affected products include Microsoft and Azure Linux versions 3.0. No known exploits in the wild have been reported, and no patch or remediation details are provided.

References

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