CVE-2026-71226

HIGHNVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-08-05. NVD baseline CVSS 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — Patch released this week
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
7.3
EG Score
7.3(high)
EG Risk
33(Track)
EG Risk 33/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity73% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 19, 2026

Advisory Details (2)

Auto-updated Aug 5, 2026
Patch available. Sources: redhat.
redhat

2462114 – (CVE-2026-71226) CVE-2026-71226 libkcapi: Memory corruption via uncanceled AIO requests on error in libkcapi's one-shot AIO path

https://bugzilla.redhat.com/show_bug.cgi?id=2462114
redhat Patch Available

CVE-2026-71226 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-71226

Vendor Advisories for CVE-2026-71226(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatlibkcapi-main-1.5.1-0.1.hum12026-08-19redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libkcapi1.2.1-1 ... 1.4.0-1 (6 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libkcapi1.4.0-1——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libkcapi1.4.0-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libkcapi1.4.0-1——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 32× in last 7d / 72× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 21:49 UTCVendor advisory
  3. 2026-08-20 21:49 UTCGHSA enrichment
  4. 2026-08-20 09:35 UTCVendor advisory
  5. 2026-08-20 09:35 UTCGHSA enrichment
  6. 2026-08-19 21:21 UTCEG score recompute
  7. 2026-08-19 21:21 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 10:03 UTCGHSA enrichment
  10. 2026-08-18 21:45 UTCEG score recompute
  11. 2026-08-18 21:45 UTCGHSA enrichment
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-18 09:31 UTCGHSA enrichment
  15. 2026-08-17 21:17 UTCEG score recompute
  16. 2026-08-17 21:16 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-17 09:02 UTCGHSA enrichment
  19. 2026-08-16 20:49 UTCEG score recompute
  20. 2026-08-16 20:49 UTCGHSA enrichment
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 08:35 UTCEG score recompute
  24. 2026-08-16 08:35 UTCGHSA enrichment
  25. 2026-08-16 02:15 UTCEPSS rescore
Show 47 more
  1. 2026-08-15 20:21 UTCGHSA enrichment
  2. 2026-08-15 08:07 UTCEG score recompute
  3. 2026-08-15 08:07 UTCGHSA enrichment
  4. 2026-08-15 01:31 UTCEPSS rescore
  5. 2026-08-14 19:52 UTCGHSA enrichment
  6. 2026-08-14 07:38 UTCEG score recompute
  7. 2026-08-14 07:38 UTCGHSA enrichment
  8. 2026-08-13 22:00 UTCEPSS rescore
  9. 2026-08-13 19:24 UTCGHSA enrichment
  10. 2026-08-13 07:08 UTCGHSA enrichment
  11. 2026-08-13 07:00 UTCGHSA enrichment
  12. 2026-08-12 18:44 UTCEG score recompute
  13. 2026-08-12 18:44 UTCGHSA enrichment
  14. 2026-08-12 13:51 UTCEPSS rescore
  15. 2026-08-12 06:30 UTCGHSA enrichment
  16. 2026-08-11 18:16 UTCEG score recompute
  17. 2026-08-11 18:16 UTCGHSA enrichment
  18. 2026-08-11 09:48 UTCEG score recompute
  19. 2026-08-11 09:48 UTCGHSA enrichment
  20. 2026-08-11 00:00 UTCEPSS rescore
  21. 2026-08-10 21:34 UTCGHSA enrichment
  22. 2026-08-10 09:20 UTCEG score recompute
  23. 2026-08-10 09:20 UTCGHSA enrichment
  24. 2026-08-10 08:56 UTCEG score recompute
  25. 2026-08-10 08:56 UTCGHSA enrichment
  26. 2026-08-10 05:26 UTCGHSA enrichment
  27. 2026-08-09 17:13 UTCEG score recompute
  28. 2026-08-09 17:13 UTCGHSA enrichment
  29. 2026-08-09 13:47 UTCEPSS rescore
  30. 2026-08-09 04:59 UTCGHSA enrichment
  31. 2026-08-08 16:45 UTCEG score recompute
  32. 2026-08-08 16:45 UTCGHSA enrichment
  33. 2026-08-08 16:37 UTCEPSS rescore
  34. 2026-08-08 04:31 UTCGHSA enrichment
  35. 2026-08-07 16:17 UTCGHSA enrichment
  36. 2026-08-07 04:03 UTCGHSA enrichment
  37. 2026-08-06 15:49 UTCGHSA enrichment
  38. 2026-08-06 14:54 UTCEG score recompute
  39. 2026-08-06 14:54 UTCGHSA enrichment
  40. 2026-08-06 13:47 UTCEPSS rescore
  41. 2026-08-06 02:40 UTCEG score recompute
  42. 2026-08-06 02:40 UTCGHSA enrichment
  43. 2026-08-05 14:26 UTCEG score recompute
  44. 2026-08-05 13:47 UTCEG score recompute
  45. 2026-08-05 13:27 UTCEG score recompute
  46. 2026-08-05 13:07 UTCEG score recompute
  47. 2026-08-05 13:07 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-71226?
CVE-2026-71226 is a high vulnerability published on August 5, 2026. 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.
When was CVE-2026-71226 disclosed?
CVE-2026-71226 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71226 actively exploited?
CVE-2026-71226 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 96.9% of all scored CVEs.
What is the CVSS score of CVE-2026-71226?
CVE-2026-71226 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-71226?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71226, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-71226

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