CVE-2026-45838

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:

bpf: fix end-of-list detection in cgroup_storage_get_next_key()

list_next_entry() never returns NULL -- when the current element is the last entry it wraps to the list head via container_of(). The subsequent NULL check is therefore dead code and get_next_key() never returns -ENOENT for the last element, instead reading storage->key from a bogus pointer that aliases internal map fields and copying the result to userspace.

Replace it with list_entry_is_head() so the function correctly returns -ENOENT when there are no more entries.

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
3%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 26, 2026

Advisory Details (8)

Auto-updated Jun 26, 2026
No patch confirmed yet.
generic

bpf: fix end-of-list detection in cgroup_storage_get_next_key() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fc39753b7f92e09177777e9c648afe5aa3abb81f
generic

bpf: fix end-of-list detection in cgroup_storage_get_next_key() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b4b5a20bed82130da2f2818f04d52378952fbd0b
generic

bpf: fix end-of-list detection in cgroup_storage_get_next_key() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/85a2f30e40f7468db732f55659bc6318874f49af
generic

bpf: fix end-of-list detection in cgroup_storage_get_next_key() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5828b9e5b272ecff7cf5d345128d3de7324117f7
generic

bpf: fix end-of-list detection in cgroup_storage_get_next_key() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/32ce55d424395904986f5066f8755f6cb9993377
generic

bpf: fix end-of-list detection in cgroup_storage_get_next_key() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2c88b2d96e1d4d0c7c4589a4593d4cdee6d332d6
generic

bpf: fix end-of-list detection in cgroup_storage_get_next_key() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/26d3339e465e54107bd85884341d1609c5300d6a
generic

bpf: fix end-of-list detection in cgroup_storage_get_next_key() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0f3d9dd5e1fd52b39e25328307c6a694e994ffe3

Vendor Advisories for CVE-2026-45838(2)

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

Patch Availability(31)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-23ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-23ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-23ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-23ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-23ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-23ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-23ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-23ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-23ubuntu
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.

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 (137 versions)7.0.10-1—

Weakness Classification(1)

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

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 / 67× 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 199 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. 2026-08-23 15:48 UTCEG score recompute
  11. 2026-08-23 15:48 UTCVendor advisory
  12. 2026-08-23 15:48 UTCGHSA enrichment
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-21 23:49 UTCEPSS rescore
  15. 2026-08-21 21:08 UTCEG score recompute
  16. 2026-08-21 21:08 UTCVendor advisory
  17. 2026-08-21 21:07 UTCGHSA enrichment
  18. 2026-08-20 22:55 UTCEPSS rescore
  19. 2026-08-20 17:51 UTCEG score recompute
  20. 2026-08-20 17:51 UTCVendor advisory
  21. 2026-08-20 17:51 UTCGHSA enrichment
  22. 2026-08-19 17:04 UTCEPSS rescore
  23. 2026-08-18 13:48 UTCEPSS rescore
  24. 2026-08-17 13:47 UTCEPSS rescore
  25. 2026-08-17 09:23 UTCEG score recompute
Show 75 more
  1. 2026-08-17 09:23 UTCVendor advisory
  2. 2026-08-17 09:23 UTCGHSA enrichment
  3. 2026-08-16 14:56 UTCEPSS rescore
  4. 2026-08-16 02:57 UTCEG score recompute
  5. 2026-08-16 02:57 UTCVendor advisory
  6. 2026-08-16 02:57 UTCGHSA enrichment
  7. 2026-08-16 02:14 UTCEPSS rescore
  8. 2026-08-15 03:32 UTCEG score recompute
  9. 2026-08-15 03:32 UTCVendor advisory
  10. 2026-08-15 03:32 UTCGHSA enrichment
  11. 2026-08-15 01:30 UTCEPSS rescore
  12. 2026-08-14 05:47 UTCEG score recompute
  13. 2026-08-14 05:47 UTCVendor advisory
  14. 2026-08-14 05:47 UTCGHSA enrichment
  15. 2026-08-13 22:00 UTCEPSS rescore
  16. 2026-08-13 08:03 UTCEG score recompute
  17. 2026-08-13 08:03 UTCVendor advisory
  18. 2026-08-13 08:03 UTCGHSA enrichment
  19. 2026-08-12 13:51 UTCEPSS rescore
  20. 2026-08-12 09:36 UTCEG score recompute
  21. 2026-08-12 09:36 UTCVendor advisory
  22. 2026-08-12 09:36 UTCGHSA enrichment
  23. 2026-08-11 07:26 UTCEG score recompute
  24. 2026-08-11 07:26 UTCVendor advisory
  25. 2026-08-11 07:26 UTCGHSA enrichment
  26. 2026-08-11 00:00 UTCEPSS rescore
  27. 2026-08-10 09:42 UTCEG score recompute
  28. 2026-08-10 09:42 UTCVendor advisory
  29. 2026-08-10 09:42 UTCGHSA enrichment
  30. 2026-08-09 13:46 UTCEPSS rescore
  31. 2026-08-09 11:59 UTCEG score recompute
  32. 2026-08-09 11:59 UTCVendor advisory
  33. 2026-08-09 11:59 UTCGHSA enrichment
  34. 2026-08-08 16:37 UTCEPSS rescore
  35. 2026-08-08 14:08 UTCVendor advisory
  36. 2026-08-08 14:08 UTCGHSA enrichment
  37. 2026-08-07 16:24 UTCVendor advisory
  38. 2026-08-07 16:24 UTCGHSA enrichment
  39. 2026-08-06 18:40 UTCEG score recompute
  40. 2026-08-06 18:40 UTCVendor advisory
  41. 2026-08-06 18:40 UTCGHSA enrichment
  42. 2026-08-06 13:47 UTCEPSS rescore
  43. 2026-08-05 20:57 UTCEG score recompute
  44. 2026-08-05 20:57 UTCVendor advisory
  45. 2026-08-05 20:57 UTCGHSA enrichment
  46. 2026-08-05 19:17 UTCEPSS rescore
  47. 2026-08-04 15:10 UTCEPSS rescore
  48. 2026-08-04 10:39 UTCEPSS rescore
  49. 2026-08-03 16:32 UTCEG score recompute
  50. 2026-08-03 16:32 UTCVendor advisory
  51. 2026-08-03 16:32 UTCGHSA enrichment
  52. 2026-08-03 10:36 UTCEPSS rescore
  53. 2026-08-02 13:36 UTCEG score recompute
  54. 2026-08-02 13:36 UTCVendor advisory
  55. 2026-08-02 13:36 UTCGHSA enrichment
  56. 2026-08-02 02:27 UTCEPSS rescore
  57. 2026-08-01 15:52 UTCEG score recompute
  58. 2026-08-01 15:52 UTCVendor advisory
  59. 2026-08-01 15:52 UTCGHSA enrichment
  60. 2026-08-01 04:16 UTCEPSS rescore
  61. 2026-07-31 08:11 UTCEG score recompute
  62. 2026-07-31 08:11 UTCVendor advisory
  63. 2026-07-31 08:10 UTCGHSA enrichment
  64. 2026-07-30 16:28 UTCEPSS rescore
  65. 2026-07-30 01:30 UTCEPSS rescore
  66. 2026-07-29 16:12 UTCEG score recompute
  67. 2026-07-29 16:12 UTCVendor advisory
  68. 2026-07-29 16:11 UTCGHSA enrichment
  69. 2026-07-28 15:36 UTCEPSS rescore
  70. 2026-07-27 14:13 UTCEPSS rescore
  71. 2026-07-26 14:54 UTCEPSS rescore
  72. 2026-07-26 14:54 UTCEPSS rescore
  73. 2026-07-24 14:17 UTCEPSS rescore
  74. 2026-07-23 14:18 UTCEPSS rescore
  75. 2026-07-23 03:16 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-45838?
CVE-2026-45838 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: bpf: fix end-of-list detection in cgroupstoragegetnextkey() listnextentry() never returns NULL -- when the current element is the last entry it wraps to the list head via container_of(). The subsequent NULL check is therefore dead…
When was CVE-2026-45838 disclosed?
CVE-2026-45838 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45838 actively exploited?
CVE-2026-45838 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 97.4% of all scored CVEs.
What is the CVSS score of CVE-2026-45838?
CVE-2026-45838 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-45838?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45838, 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-2026-45838

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