CVE-2026-53168

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-25. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: 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:

fuse: reject fuse_notify() pagecache ops on directories

The operations FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE allow the FUSE daemon to actively write/read pagecache contents.

For directories with FOPEN_CACHE_DIR, the pagecache is used as kernel-internal cache storage, and userspace is not supposed to have direct access to this cache - in particular, fuse_parse_cache() will hit WARN_ON() if the cache contains bogus data.

Reject FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE on anything other than regular files with -EINVAL.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 6, 2026

Advisory Details (8)

Auto-updated Jul 9, 2026
No patch confirmed yet.
generic

fuse: reject fuse_notify() pagecache ops on directories - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e692f0cb86204dcdb9dddc0b355407eda6394a67
generic

fuse: reject fuse_notify() pagecache ops on directories - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dd92773d4d9cea010474eb08a5133c14ff6ab53a
generic

fuse: reject fuse_notify() pagecache ops on directories - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bd23fa0c16c5c86e5b7713224ffbb87d9db81cca
generic

fuse: reject fuse_notify() pagecache ops on directories - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6
generic

fuse: reject fuse_notify() pagecache ops on directories - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9c954499d43aefac01c5dfb57a82b13d2dcf4b94
generic

fuse: reject fuse_notify() pagecache ops on directories - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/99c317d7f8b7bbf3de16d20a01f363e390114cea
generic

fuse: reject fuse_notify() pagecache ops on directories - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/15487f98863dc7156ed43c5be26d478beb82ba35
generic

fuse: reject fuse_notify() pagecache ops on directories - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/12df4cfa738aefff21756728e91056d7defb0fe6

Vendor Advisories for CVE-2026-53168(2)

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

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (145 versions)7.0.13-1—

Data Freshness Timeline

(refreshed 5× in last 7d / 60× 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 190 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53168?
CVE-2026-53168 is a medium vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: fuse: reject fuse_notify() pagecache ops on directories The operations FUSENOTIFYSTORE and FUSENOTIFYRETRIEVE allow the FUSE daemon to actively write/read pagecache contents. For directories with FOPENCACHEDIR, the pagecache is…
When was CVE-2026-53168 disclosed?
CVE-2026-53168 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53168 actively exploited?
CVE-2026-53168 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 94.2% of all scored CVEs.
What is the CVSS score of CVE-2026-53168?
CVE-2026-53168 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53168?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53168, 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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