CVE-2026-35352

HIGHNVD 7.07.0—
EchelonGraph scoreMEDIUM confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-04-22. NVD baseline CVSS 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.0Exploit: None knownExposed: 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) race condition exists in the mkfifo utility of uutils coreutils. The utility creates a FIFO and then performs a path-based chmod to set permissions. A local attacker with write access to the parent directory can swap the newly created FIFO for a symbolic link between these two operations. This redirects the chmod call to an arbitrary file, potentially enabling privilege escalation if the utility is run with elevated privileges.

CVSS v3
7.0
EG Score
7.0(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity70% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

April 22, 2026

Last Modified

May 4, 2026

Advisory Details (2)

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

mkfifo TOCTOU race via path-based chmod · Issue #10020 · uutils/coreutils · GitHub

https://github.com/uutils/coreutils/issues/10020
generic

oss-security - Re: uutils coreutils CVEs

http://www.openwall.com/lists/oss-security/2026/05/04/4

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

(4 across 4 ecosystems)
crates.io(1)
PackageVulnerable rangeFixed inDependents
coreutils———
Debian:12(1)
PackageVulnerable rangeFixed inDependents
rust-coreutils0.0.17-2 ... 0.9.0-3 (40 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
rust-coreutils0.0.30-2 ... 0.9.0-3 (15 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
rust-coreutils0.0.30-2 ... 0.9.0-3 (15 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 54× 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 177 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-35352?
CVE-2026-35352 is a high vulnerability published on April 22, 2026. A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mkfifo utility of uutils coreutils. The utility creates a FIFO and then performs a path-based chmod to set permissions. A local attacker with write access to the parent directory can swap the newly created FIFO for a symbolic link…
When was CVE-2026-35352 disclosed?
CVE-2026-35352 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-2026-35352 actively exploited?
CVE-2026-35352 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 95.8% of all scored CVEs.
What is the CVSS score of CVE-2026-35352?
CVE-2026-35352 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2026-35352?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-35352, 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.

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