Libkcapi: memory corruption via uncanceled aio requests on error in libkcapi's one-shot aio path
CVSS score
7.3
EPSS probability
%0.2
Risk score
0.0
Published
2 mo ago
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Vulnerability description
DayBreach CVE AI Research
CVE-2026-71226 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-71226 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Stephan Muelle | libkcapi | View |
| 2 | Red Hat | Red Hat Enterprise Linux 10 | View |
| 3 | Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | View |
| 4 | Red Hat | Red Hat Enterprise Linux 8 | View |
| 5 | Red Hat | Red Hat Enterprise Linux 9 | View |
| 6 | Red Hat | Red Hat Hardened Images | View |
| 7 | Red Hat | Red Hat OpenShift Container Platform 4 | View |
| 8 | redhat | hardened images | View |
| 9 | redhat | openshift container platform | View |
| 10 | smuellerdd | libkcapi | View |
| 11 | redhat | enterprise linux | View |
| 12 | redhat | enterprise linux | View |
| 13 | redhat | enterprise linux | View |
| 14 | debian | libkcapi (sid) | View |
| 15 | debian | libkcapi (forky) | View |
| 16 | debian | libkcapi (trixie) | View |
| 17 | debian | libkcapi (bookworm) | View |
| 18 | debian | libkcapi (bullseye) | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.3 | CVSS V3_1 | HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H | CVE CNA |
| 7.3 | CVSS V31 | HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H | NVD |
| 7.3 | CVSS 3.x | — | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H | Microsoft MSRC |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-71226 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-71226 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
CVSS Vector Radar Chart
7.3 / 10Vulnerability Scoring Details
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Weakness Type (CWE & CAPEC)
Similar Vulnerabilities
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