CVE-2026-50880

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-15. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 9.8Exploit: No code on recordExposed services: Not assessed

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

An issue in the sendmail transport integration component of YouTransfer v1.0.6 allows attackers to execute arbitrary code via supplying a crafted request.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

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 (value × EchelonGraph’s weight)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.7%
EPSS %ILE
52nd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 15, 2026

Last Modified

June 16, 2026

Advisory Details (1)

Auto-updated Oct 8, 2026
No fix on record yet.
Web page

Reference for CVE-2026-50880 · GitHub

https://gist.github.com/pyuysig/4013f4f10f74b3fded7ddf41b6d36ae5

Vendor Advisories for CVE-2026-50880(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
npmyoutransfer—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)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
youtransfer—
  • every version through 1.0.6: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 36× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 441 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 341 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-16 19:24 UTCEG score recompute
  2. 2026-10-16 19:24 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  4. 2026-10-15 17:00 UTCEG score recompute
  5. 2026-10-15 17:00 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  7. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  8. 2026-10-14 11:02 UTCEG score recompute
  9. 2026-10-14 11:02 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  11. 2026-10-13 09:07 UTCEG score recompute
  12. 2026-10-13 09:07 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  14. 2026-10-12 15:59 UTCEG score recompute
  15. 2026-10-12 07:14 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-10-11 19:42 UTCEG score recompute
  17. 2026-10-11 16:56 UTCEG score recompute
  18. 2026-10-11 14:20 UTCEG score recompute
  19. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  20. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  21. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  22. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  23. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  24. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  25. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.7% · 51st percentile
Show 75 more
  1. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  2. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  3. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  4. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  5. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  6. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  7. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  8. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  9. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  10. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  12. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  13. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  14. 2026-09-14 07:52 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-09-14 03:51 UTCEG score recompute
  16. 2026-09-14 03:51 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  18. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  19. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  20. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  21. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  22. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  24. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  25. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  26. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  27. 2026-08-30 23:10 UTCEG score recompute
  28. 2026-08-30 23:10 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  29. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  30. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  31. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  32. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  33. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  34. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  35. 2026-08-25 03:41 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  36. 2026-08-24 23:40 UTCEG score recompute
  37. 2026-08-24 23:40 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  38. 2026-08-23 21:57 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  39. 2026-08-23 17:54 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  40. 2026-08-23 13:53 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-08-23 09:51 UTCEG score recompute
  42. 2026-08-23 09:51 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  43. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  44. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  45. 2026-08-21 23:33 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  46. 2026-08-21 19:11 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  47. 2026-08-21 14:48 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  48. 2026-08-21 10:46 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  49. 2026-08-21 06:33 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  50. 2026-08-21 00:28 UTCEG score recompute
  51. 2026-08-21 00:27 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  52. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  53. 2026-08-20 20:26 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  54. 2026-08-20 16:23 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  55. 2026-08-20 08:43 UTCEG score recompute
  56. 2026-08-20 08:43 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  58. 2026-08-19 13:31 UTCEG score recompute
  59. 2026-08-19 13:31 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  60. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  61. 2026-08-17 14:40 UTCEG score recompute
  62. 2026-08-17 14:40 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  63. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  64. 2026-08-17 10:39 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  65. 2026-08-17 06:38 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  66. 2026-08-17 02:36 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  67. 2026-08-16 22:35 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  68. 2026-08-16 15:34 UTCEG score recompute
  69. 2026-08-16 15:34 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  70. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  71. 2026-08-16 11:33 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  72. 2026-08-16 07:32 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  73. 2026-08-16 03:30 UTCEG score recompute
  74. 2026-08-16 03:30 UTCGHSA enrichmentGHSA-68mc-h6h8-79wj · GitHub severity CRITICAL · GitHub CVSS 9.8
  75. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.5% · 39th percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-50880?
CVE-2026-50880 is a critical-severity vulnerability; its CVE record was published on June 15, 2026. An issue in the sendmail transport integration component of YouTransfer v1.0.6 allows attackers to execute arbitrary code via supplying a crafted request.
When was the CVE record for CVE-2026-50880 published?
The CVE record for CVE-2026-50880 was published on June 15, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 16, 2026; the record at its source may have been updated since.
Is CVE-2026-50880 actively exploited?
CVE-2026-50880 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (52nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-50880?
CVE-2026-50880 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-50880?
No fix for CVE-2026-50880 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-50880 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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