CVE-2026-53039

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-24. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
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:

ocfs2: validate group add input before caching

[BUG] OCFS2_IOC_GROUP_ADD can trigger a BUG_ON in ocfs2_set_new_buffer_uptodate():

kernel BUG at fs/ocfs2/uptodate.c:509! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI RIP: 0010:ocfs2_set_new_buffer_uptodate+0x194/0x1e0 fs/ocfs2/uptodate.c:509 Code: ffffe88f 42b9fe4c 89e64889 dfe8b4df Call Trace: ocfs2_group_add+0x3f1/0x1510 fs/ocfs2/resize.c:507 ocfs2_ioctl+0x309/0x6e0 fs/ocfs2/ioctl.c:887 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x197/0x1e0 fs/ioctl.c:583 x64_sys_call+0x1144/0x26a0 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x93/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7bbfb55a966d

[CAUSE] ocfs2_group_add() calls ocfs2_set_new_buffer_uptodate() on a user-controlled group block before ocfs2_verify_group_and_input() validates that block number. That helper is only valid for newly allocated metadata and asserts that the block is not already present in the chosen metadata cache. The code also uses INODE_CACHE(inode) even though the group descriptor belongs to main_bm_inode and later journal accesses use that cache context instead.

[FIX] Validate the on-disk group descriptor before caching it, then add it to the metadata cache tracked by INODE_CACHE(main_bm_inode). Keep the validation failure path separate from the later cleanup path so we only remove the buffer from that cache after it has actually been inserted. This keeps the group buffer lifetime consistent across validation, journaling, and cleanup.

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

June 24, 2026

Last Modified

July 14, 2026

Advisory Details (8)

Auto-updated Jul 17, 2026
No patch confirmed yet.
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f7e139d7563f6947ad509fb468903941d0bb7ddd
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e7c2cb552e6eb85c0f5aefdd7f0f7c3c8591a6a3
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b9ae3942deec4c9e3fa2070521f90910f7490011
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/aed87e866d1a321edb9703563c2faa8fec89835d
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/76bd722db0a92b84ccd99e03796a0b6f1ae71c31
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/70b672833f4025341c11b22c7f83778a5cd611bc
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6c5e70409c1961fe1278968f038eaaed6cc1145a
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/22544ddedf381ed5191cfc783aea8d6c936bc201

Vendor Advisories for CVE-2026-53039(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-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-24ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-24ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-24ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-24ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-24ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-24ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-24ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-24ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-24ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1059.62~22.04.1) @ jammy2026-08-24ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-24ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-24ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-24ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-24ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-24ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-24ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-24ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-24ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-24ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-24ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-24ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-24ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-24ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-24ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1107.113~20.04.1) @ focal2026-08-24ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-24ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-24ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-24ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-24ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-24ubuntu

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.

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 20× in last 7d / 97× 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 157 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53039?
CVE-2026-53039 is a medium vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate group add input before caching [BUG] OCFS2IOCGROUPADD can trigger a BUGON in ocfs2setnewbufferuptodate(): kernel BUG at fs/ocfs2/uptodate.c:509! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI RIP:…
When was CVE-2026-53039 disclosed?
CVE-2026-53039 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53039 actively exploited?
CVE-2026-53039 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-2026-53039?
CVE-2026-53039 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53039?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53039, 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-2026-53039

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