CVE-2026-45225

HIGHPre-NVD 7.67.6—
EchelonGraph scoreMEDIUM confidence

Score 7.6 from GitHub Security Advisory (severity: HIGH) published 2026-05-13. a secondary CVSS source baseline 7.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.6Exploit: Elevated riskExposed: 0

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

Heym before 0.0.21 contains a path traversal vulnerability in the file upload endpoint that allows authenticated users to write attacker-controlled files to arbitrary locations by supplying a crafted filename with traversal sequences. Attackers can exploit the unvalidated filename parameter in the upload_file() handler to bypass path restrictions and write, read, or delete files outside the intended storage directory.

CVSS v3
7.6
EG Score
7.6(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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
Severity76% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

May 12, 2026

Last Modified

July 14, 2026

Advisory Details (4)

Auto-updated May 12, 2026
No patch confirmed yet.
generic

Heym < 0.0.21 Path Traversal File Upload via upload_file() | Advisories | VulnCheck

https://www.vulncheck.com/advisories/heym-path-traversal-file-upload-via-upload-file
generic

Release v0.0.21 · heymrun/heym · GitHub

https://github.com/heymrun/heym/releases/tag/v0.0.21
generic

[security] fix(files): contain stored upload paths by Hinotoi-agent · Pull Request #92 · heymrun/heym · GitHub

https://github.com/heymrun/heym/pull/92
generic

Merge pull request #92 from Hinotoi-agent/fix/file-upload-path-contai… · heymrun/heym@835843e · GitHub

https://github.com/heymrun/heym/commit/835843e6d2bf7d018cbb8e50f28f0426eaa20c84

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 32× 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 125 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-45225?
CVE-2026-45225 is a high vulnerability published on May 12, 2026. Heym before 0.0.21 contains a path traversal vulnerability in the file upload endpoint that allows authenticated users to write attacker-controlled files to arbitrary locations by supplying a crafted filename with traversal sequences. Attackers can exploit the unvalidated filename parameter in the…
When was CVE-2026-45225 disclosed?
CVE-2026-45225 was first published in the National Vulnerability Database on May 12, 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-2026-45225 actively exploited?
CVE-2026-45225 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 71.9% of all scored CVEs.
What is the CVSS score of CVE-2026-45225?
CVE-2026-45225 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-45225?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45225, 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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