CVE-2026-43117

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-06. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In the Linux kernel, the following vulnerability has been resolved:

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()

If overlay is used on top of btrfs, dentry->d_sb translates to overlay's super block and fsid assignment will lead to a crash.

Use file_inode(file)->i_sb to always get btrfs_sb.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

May 6, 2026

Last Modified

June 1, 2026

Advisory Details (5)

Auto-updated May 8, 2026
No patch confirmed yet.
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d110d7cdb045715c0b45b0dfd974525bb38f653d
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c09a7446aab5773f38d6abb25fce99b8e1dfbc97
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a85b46db143fda5869e7d8df8f258ccef5fa1719
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/32372781d664a9b03c40343e96c29d0a6139f97d
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2e4adfaec97ee053ad1bdfb5036845e66f7e0d8a

Vendor Advisories for CVE-2026-43117(1)

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
linuxKernel @ 5.10.258—osv

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.

Data Freshness Timeline

(refreshed 9× in last 7d / 32× 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.

Showing the most recent 100 of 155 total refreshes for this CVE.

  1. 2026-07-27 14:13 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-26 14:54 UTCEPSS rescore
  4. 2026-07-25 14:18 UTCEPSS rescore
  5. 2026-07-24 14:17 UTCEPSS rescore
  6. 2026-07-23 14:18 UTCEPSS rescore
  7. 2026-07-23 03:13 UTCEG score recompute
  8. 2026-07-22 14:08 UTCEPSS rescore
  9. 2026-07-21 15:24 UTCEPSS rescore
  10. 2026-07-20 21:32 UTCOSV refresh
  11. 2026-07-20 17:08 UTCEPSS rescore
  12. 2026-07-19 14:31 UTCEPSS rescore
  13. 2026-07-19 02:29 UTCEPSS rescore
  14. 2026-07-18 10:04 UTCEPSS rescore
  15. 2026-07-16 17:03 UTCEPSS rescore
  16. 2026-07-15 16:57 UTCEPSS rescore
  17. 2026-07-15 02:00 UTCEPSS rescore
  18. 2026-07-13 22:30 UTCEPSS rescore
  19. 2026-07-13 06:13 UTCEPSS rescore
  20. 2026-07-12 05:46 UTCEPSS rescore
  21. 2026-07-11 08:27 UTCEPSS rescore
  22. 2026-07-09 19:10 UTCEPSS rescore
  23. 2026-07-08 15:16 UTCEPSS rescore
  24. 2026-07-07 13:46 UTCEPSS rescore
  25. 2026-07-06 16:27 UTCEPSS rescore
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  1. 2026-07-06 02:23 UTCEPSS rescore
  2. 2026-07-05 02:30 UTCEPSS rescore
  3. 2026-07-04 06:31 UTCEPSS rescore
  4. 2026-07-01 15:06 UTCEPSS rescore
  5. 2026-06-30 23:22 UTCEPSS rescore
  6. 2026-06-29 14:06 UTCEPSS rescore
  7. 2026-06-28 14:07 UTCEPSS rescore
  8. 2026-06-28 04:56 UTCEPSS rescore
  9. 2026-06-27 03:08 UTCEPSS rescore
  10. 2026-06-25 13:49 UTCEPSS rescore
  11. 2026-06-25 13:49 UTCEPSS rescore
  12. 2026-06-24 14:05 UTCEPSS rescore
  13. 2026-06-23 21:33 UTCEPSS rescore
  14. 2026-06-22 14:25 UTCEPSS rescore
  15. 2026-06-22 14:25 UTCEPSS rescore
  16. 2026-06-21 14:56 UTCEPSS rescore
  17. 2026-06-21 14:56 UTCEPSS rescore
  18. 2026-06-21 01:59 UTCEPSS rescore
  19. 2026-06-19 19:25 UTCEPSS rescore
  20. 2026-06-18 17:52 UTCEPSS rescore
  21. 2026-06-18 17:52 UTCEPSS rescore
  22. 2026-06-17 17:53 UTCEPSS rescore
  23. 2026-06-16 17:52 UTCEPSS rescore
  24. 2026-06-15 17:49 UTCEPSS rescore
  25. 2026-06-15 05:39 UTCGHSA enrichment
  26. 2026-06-15 01:28 UTCGHSA enrichment
  27. 2026-06-14 20:33 UTCGHSA enrichment
  28. 2026-06-14 16:23 UTCGHSA enrichment
  29. 2026-06-14 11:54 UTCGHSA enrichment
  30. 2026-06-14 07:44 UTCGHSA enrichment
  31. 2026-06-13 23:00 UTCEPSS rescore
  32. 2026-06-13 00:53 UTCGHSA enrichment
  33. 2026-06-12 23:12 UTCEPSS rescore
  34. 2026-06-12 23:12 UTCEPSS rescore
  35. 2026-06-12 11:22 UTCGHSA enrichment
  36. 2026-06-12 07:06 UTCGHSA enrichment
  37. 2026-06-12 02:55 UTCGHSA enrichment
  38. 2026-06-11 22:45 UTCGHSA enrichment
  39. 2026-06-11 18:34 UTCGHSA enrichment
  40. 2026-06-11 14:24 UTCGHSA enrichment
  41. 2026-06-11 14:00 UTCEPSS rescore
  42. 2026-06-11 10:13 UTCGHSA enrichment
  43. 2026-06-11 06:02 UTCGHSA enrichment
  44. 2026-06-11 01:51 UTCGHSA enrichment
  45. 2026-06-10 22:18 UTCEPSS rescore
  46. 2026-06-10 20:32 UTCGHSA enrichment
  47. 2026-06-10 16:21 UTCGHSA enrichment
  48. 2026-06-10 13:22 UTCEPSS rescore
  49. 2026-06-10 13:22 UTCEPSS rescore
  50. 2026-06-10 12:10 UTCGHSA enrichment
  51. 2026-06-10 07:59 UTCGHSA enrichment
  52. 2026-06-10 03:48 UTCGHSA enrichment
  53. 2026-06-09 23:37 UTCGHSA enrichment
  54. 2026-06-09 19:27 UTCGHSA enrichment
  55. 2026-06-09 15:10 UTCGHSA enrichment
  56. 2026-06-09 10:59 UTCGHSA enrichment
  57. 2026-06-09 06:49 UTCGHSA enrichment
  58. 2026-06-09 02:34 UTCGHSA enrichment
  59. 2026-06-08 22:16 UTCGHSA enrichment
  60. 2026-06-08 14:17 UTCEPSS rescore
  61. 2026-06-08 14:17 UTCEPSS rescore
  62. 2026-06-08 12:40 UTCGHSA enrichment
  63. 2026-06-08 08:29 UTCGHSA enrichment
  64. 2026-06-08 04:19 UTCGHSA enrichment
  65. 2026-06-08 00:08 UTCGHSA enrichment
  66. 2026-06-07 19:58 UTCGHSA enrichment
  67. 2026-06-07 15:47 UTCGHSA enrichment
  68. 2026-06-07 15:25 UTCEPSS rescore
  69. 2026-06-07 15:25 UTCEPSS rescore
  70. 2026-06-07 11:35 UTCGHSA enrichment
  71. 2026-06-07 07:25 UTCGHSA enrichment
  72. 2026-06-07 03:15 UTCGHSA enrichment
  73. 2026-06-06 23:04 UTCGHSA enrichment
  74. 2026-06-06 18:53 UTCGHSA enrichment
  75. 2026-06-06 14:43 UTCGHSA enrichment

Related CVEs(same product)

Frequently asked(5)

What is CVE-2026-43117?
CVE-2026-43117 is a critical vulnerability published on May 6, 2026. In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from dentry in event btrfssyncfile() If overlay is used on top of btrfs, dentry->d_sb translates to overlay's super block and fsid assignment will lead to a crash. Use fileinode(file)->isb…
When was CVE-2026-43117 disclosed?
CVE-2026-43117 was first published in the National Vulnerability Database on May 6, 2026, with the most recent update on June 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43117 actively exploited?
CVE-2026-43117 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 67.5% of all scored CVEs.
What is the CVSS score of CVE-2026-43117?
CVE-2026-43117 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-43117?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43117, 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

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