CVE-2026-43619

MEDIUMNVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory (severity: HIGH) published 2026-05-20. 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

A fix is available — apply it.

Rsync version 3.4.2 and prior contain symlink race condition vulnerabilities in path-based system calls including chmod, lchown, utimes, rename, unlink, mkdir, symlink, mknod, link, rmdir, and lstat that allow local attackers to redirect operations to files outside the exported rsync module. Attackers with local filesystem access can exploit the timing window between path resolution and syscall execution by swapping symlinks to apply sender-supplied permissions, ownership, timestamps, or filenames to arbitrary files outside the intended module boundary on rsync daemons configured with 'use chroot = no'.

CVSS v3
6.3
EG Score
6.3(medium)
EPSS
3.4%
KEV
Not listed

Published

May 20, 2026

Last Modified

May 21, 2026

Advisory Details (3)

Auto-updated May 20, 2026
Patch available. Sources: github.
generic

Rsync < 3.4.3 Symlink Race Condition via Path-Based Syscalls | Advisories | VulnCheck

https://www.vulncheck.com/advisories/rsync-symlink-race-condition-via-path-based-syscalls
github Patch Available

symlink races on path-based syscalls · Advisory · RsyncProject/rsync · GitHub

https://github.com/RsyncProject/rsync/security/advisories/GHSA-4h9m-w5ff-j735
generic

Release v3.4.3 · RsyncProject/rsync · GitHub

https://github.com/RsyncProject/rsync/releases/tag/v3.4.3

Vendor Advisories for CVE-2026-43619(2)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntursync (3.4.1+ds1-7ubuntu0.2) @ resolute2026-06-29ubuntu
ubuntursync (3.1.1-3ubuntu1.3+esm5) @ xenial2026-06-29ubuntu

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.

Weakness Classification(2)

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

Additional Vendor Advisories

(2)

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 6× in last 7d / 60× 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 129 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-43619?
CVE-2026-43619 is a medium vulnerability published on May 20, 2026. Rsync version 3.4.2 and prior contain symlink race condition vulnerabilities in path-based system calls including chmod, lchown, utimes, rename, unlink, mkdir, symlink, mknod, link, rmdir, and lstat that allow local attackers to redirect operations to files outside the exported rsync module.…
When was CVE-2026-43619 disclosed?
CVE-2026-43619 was first published in the National Vulnerability Database on May 20, 2026, with the most recent update on May 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43619 actively exploited?
CVE-2026-43619 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-43619?
CVE-2026-43619 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-43619?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43619, 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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