PatchTheCVECVE-2026-43053: In the Linux kernel, the following vulnerability has been resolved: xfs: close crash window in attr dabtree i
CVE-2026-43053 is a medium-severity flaw (CVSS 4.7) affecting linux kernel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
In the Linux kernel, the following vulnerability has been resolved: xfs: close crash window in attr dabtree inactivation When inactivating an inode with node-format extended attributes, xfs_attr3_node_inactive() invalidates all child leaf/node blocks via xfs_trans_binval(), but intentionally does not remove the corresponding entries from their parent node blocks. The implicit assumption is that xfs_attr_inactive() will truncate the entire attr
Why this priority
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.7 (Medium) |
| Attack vector | Local |
| Attack complexity | High |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.1% (top 98%) |
| CISA exploited list | No |
| Weakness | CWE-367 |
| Published | 2026-05-01 |
| Last modified | 2026-10-21 |
Last updated 2026-10-21 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-43053?
linux kernel: upgrade to 6.19.12. Exact commands for each OS are on this page.
Is CVE-2026-43053 being exploited?
CVE-2026-43053 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-43053 affect?
CVE-2026-43053 affects linux kernel. Severity is medium (CVSS 4.7). In the Linux kernel, the following vulnerability has been resolved: xfs: close crash window in attr dabtree inactivation When inactivating an inode with node-format extended attributes, xfs_attr3_node_inactive() invalidates all child leaf
How urgent is CVE-2026-43053?
Priority 22/100. On your watchlist
Software pages
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