CVE-2026-35374

MEDIUMNVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory published 2026-04-22. NVD baseline CVSS 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.3Exploit: NoneExposed: 0

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

A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the split utility of uutils coreutils. The program attempts to prevent data loss by checking for identity between input and output files using their file paths before initiating the split operation. However, the utility subsequently opens the output file with truncation after this path-based validation is complete. A local attacker with write access to the directory can exploit this race window by manipulating mutable path components (e.g., swapping a path with a symbolic link). This can cause split to truncate and write to an unintended target file, potentially including the input file itself or other sensitive files accessible to the process, leading to permanent data loss.

CVSS v3
6.3
EG Score
6.3(medium)
EPSS
0.1%
KEV
Not listed

Published

April 22, 2026

Last Modified

May 4, 2026

Advisory Details (1)

Auto-updated May 4, 2026
No patch confirmed yet.
generic

split: harden output open path against TOCTOU target swaps by can1357 · Pull Request #11401 · uutils/coreutils · GitHub

https://github.com/uutils/coreutils/pull/11401

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
rustcoreutils—ghsa

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

(1 across 1 ecosystem)
crates.io(1)
PackageVulnerable rangeFixed inDependents
coreutils———

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 3× in last 7d / 22× 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.

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

Frequently asked(5)

What is CVE-2026-35374?
CVE-2026-35374 is a medium vulnerability published on April 22, 2026. A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the split utility of uutils coreutils. The program attempts to prevent data loss by checking for identity between input and output files using their file paths before initiating the split operation. However, the utility subsequently…
When was CVE-2026-35374 disclosed?
CVE-2026-35374 was first published in the National Vulnerability Database on April 22, 2026, with the most recent update on May 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-35374 actively exploited?
CVE-2026-35374 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-35374?
CVE-2026-35374 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-35374?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-35374, 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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