CVE-2026-46046

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-27. 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

A fix is available — apply it.

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

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()

The commit c8e008b60492 ("ext4: ignore xattrs past end") introduced a refcount leak in when block_csum is false.

ext4_xattr_inode_dec_ref_all() calls ext4_get_inode_loc() to get iloc.bh, but never releases it with brelse().

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
2%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 16, 2026

Advisory Details (8)

Auto-updated Jun 16, 2026
No patch confirmed yet.
generic

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f072906688933bf47fabbaf63560be03357c8298
generic

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dd98a5603a212ea9c96c6982ccdbcc748fdb9a56
generic

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b706d00206a9e82362a9633efbd8b5775650169b
generic

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/77d059519382bd66283e6a4e83ee186e87e7708f
generic

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1e6b0a69bf2c9c819255c7566e4355536d81d9cf
generic

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1bc1107a3a403a6d440673ed6666f7b07ef868a8
generic

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/153ab2c52355fbebcae622db8e7b506492c73a29
generic

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/097227f1ffe1a85bc3c359f81c71e3d40e06e920

Vendor Advisories for CVE-2026-46046(2)

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

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-25ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-25ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-25ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-25ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-25ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-25ubuntu

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

(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 ... 6.12.86-1~bpo12+1 (19 versions)6.12.86-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.4-1~bpo13+1 (131 versions)7.0.4-1—

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 68× 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 207 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-46046?
CVE-2026-46046 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse() in ext4xattrinodedecref_all() The commit c8e008b60492 ("ext4: ignore xattrs past end") introduced a refcount leak in when block_csum is false. ext4xattrinodedecrefall() calls ext4getinodeloc() to get…
When was CVE-2026-46046 disclosed?
CVE-2026-46046 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46046 actively exploited?
CVE-2026-46046 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 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-46046?
CVE-2026-46046 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-46046?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46046, 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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