CVE-2026-93371

HIGHPre-NVD 8.38.3
EchelonGraph scoreMEDIUM confidence

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

Score 8.3 from GitHub Security Advisory published 2026-09-18. A secondary CVSS source baseline 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-82640 (ENISA EUVD) · GHSA-vppc-qfgr-6vg2 (GitHub Security Advisories)Source: ENISA EUVD

8.3EG
EchelonGraph verdictPlan mitigationThe upstream fix is not in a release yet: until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.4%CVSS: 8.3Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

A security vulnerability has been detected in marcopiovanello yt-dlp-web-ui up to v4. This issue affects the function NewGenericDownload of the file server/internal/downloaders/generic.go. Such manipulation of the argument params leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The name of the patch is c7ad3bd79c7c520a7d17e7f2ba19d962be8e7897. A patch should be applied to remediate this issue.

CVSS v3
8.3
EG Score
8.3HIGHmedium confidence
EG Risk
53
EG Risk 53/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity83% × 45%
Impact severity (EG Severity): CVSS 8.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation1.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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: An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it.
EPSS PROB
1.4%
EPSS %ILE
71st
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.3): severity, escalated by confirmed exploitation. This CVE's 8.3 is its impact severity (EG Severity), not escalated.

EG Severity
8.3 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
1.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-30). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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)14 days if the affected system is publicly exposed; 60 days if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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

September 18, 2026

Last Modified

September 22, 2026

Advisory Details (2)

Auto-updated Sep 18, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
Web page

GitHub - marcopiovanello/yt-dlp-web-ui: A terrible web ui and RPC server for yt-dlp. Designed to be self-hosted. · GitHub

https://github.com/marcopiovanello/yt-dlp-web-ui/
GitHub commit

commit c7ad3bd79c7c (marcopiovanello/yt-dlp-web-ui)

Fix landed in marcopiovanello/yt-dlp-web-ui commit c7ad3bd79c7c — awaiting tagged release

https://github.com/marcopiovanello/yt-dlp-web-ui/commit/c7ad3bd79c7c520a7d17e7f2ba19d962be8e7897

Vendor Advisories for CVE-2026-93371(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 66× 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 99 of 131 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 32 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-31 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  2. 2026-10-30 23:44 UTCEG score recompute
  3. 2026-10-30 23:44 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  4. 2026-10-30 16:35 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  5. 2026-10-29 16:34 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  6. 2026-10-28 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  7. 2026-10-27 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  8. 2026-10-26 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  9. 2026-10-25 16:34 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  10. 2026-10-25 13:49 UTCEG score recompute
  11. 2026-10-24 16:34 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  12. 2026-10-24 13:38 UTCEG score recompute
  13. 2026-10-24 13:38 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  14. 2026-10-23 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  15. 2026-10-22 16:35 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  16. 2026-10-21 16:34 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  17. 2026-10-20 16:34 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  18. 2026-10-19 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  19. 2026-10-18 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  20. 2026-10-18 03:32 UTCEG score recompute
  21. 2026-10-18 03:32 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  22. 2026-10-18 02:59 UTCEG score recompute
  23. 2026-10-17 16:35 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  24. 2026-10-16 16:45 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  25. 2026-10-15 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
Show 74 more
  1. 2026-10-14 16:34 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  2. 2026-10-13 16:35 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  3. 2026-10-13 04:27 UTCEG score recompute
  4. 2026-10-13 04:27 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  5. 2026-10-12 16:35 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  6. 2026-10-12 14:43 UTCEG score recompute
  7. 2026-10-11 19:12 UTCEG score recompute
  8. 2026-10-11 18:49 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  9. 2026-10-11 16:28 UTCEG score recompute
  10. 2026-10-11 13:50 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  11. 2026-10-11 13:42 UTCEG score recompute
  12. 2026-10-11 07:08 UTCEG score recompute
  13. 2026-10-11 07:08 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  14. 2026-10-10 20:00 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  15. 2026-10-10 19:31 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  16. 2026-10-10 07:24 UTCEG score recompute
  17. 2026-10-10 07:24 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  18. 2026-10-09 20:08 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  19. 2026-10-09 19:39 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  20. 2026-10-09 08:02 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  21. 2026-10-08 20:25 UTCEG score recompute
  22. 2026-10-08 20:24 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  23. 2026-10-08 17:14 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  24. 2026-10-08 08:39 UTCEG score recompute
  25. 2026-10-08 08:39 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  26. 2026-10-07 23:48 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  27. 2026-10-07 21:01 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  28. 2026-10-07 09:24 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  29. 2026-10-06 21:47 UTCEG score recompute
  30. 2026-10-06 21:47 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  31. 2026-10-06 15:19 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  32. 2026-10-06 10:09 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  33. 2026-10-05 21:58 UTCEG score recompute
  34. 2026-10-05 21:58 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  35. 2026-10-05 17:44 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  36. 2026-10-05 10:21 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  37. 2026-10-04 22:44 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  38. 2026-10-04 11:06 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  39. 2026-10-03 23:29 UTCEG score recompute
  40. 2026-10-03 23:29 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  41. 2026-10-03 14:26 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  42. 2026-10-03 11:50 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  43. 2026-10-02 23:57 UTCEG score recompute
  44. 2026-10-02 23:57 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  45. 2026-10-02 12:16 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  46. 2026-10-02 00:08 UTCEG score recompute
  47. 2026-10-02 00:08 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  48. 2026-10-01 19:51 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  49. 2026-10-01 12:12 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  50. 2026-10-01 00:35 UTCEG score recompute
  51. 2026-10-01 00:35 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  52. 2026-09-30 15:04 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  53. 2026-09-30 12:19 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  54. 2026-09-30 00:42 UTCEG score recompute
  55. 2026-09-30 00:42 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  56. 2026-09-29 11:53 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  57. 2026-09-29 00:16 UTCEG score recompute
  58. 2026-09-29 00:16 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  59. 2026-09-28 13:52 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  60. 2026-09-28 12:38 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  61. 2026-09-28 01:01 UTCEG score recompute
  62. 2026-09-28 01:01 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  63. 2026-09-27 13:49 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  64. 2026-09-27 13:23 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  65. 2026-09-27 01:46 UTCEG score recompute
  66. 2026-09-27 01:45 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  67. 2026-09-26 15:59 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  68. 2026-09-26 14:03 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  69. 2026-09-26 02:03 UTCEG score recompute
  70. 2026-09-26 02:03 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  71. 2026-09-25 14:26 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  72. 2026-09-25 02:42 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3
  73. 2026-09-24 15:04 UTCEG score recompute
  74. 2026-09-24 15:04 UTCGHSA enrichmentGHSA-vppc-qfgr-6vg2 · GitHub CVSS 8.3

Frequently asked(5)

What is CVE-2026-93371?
CVE-2026-93371 is a high-severity vulnerability; its CVE record was published on September 18, 2026. A security vulnerability has been detected in marcopiovanello yt-dlp-web-ui up to v4. This issue affects the function NewGenericDownload of the file server/internal/downloaders/generic.go. Such manipulation of the argument params leads to command injection. It is possible to launch the attack…
When was the CVE record for CVE-2026-93371 published?
The CVE record for CVE-2026-93371 was published on September 18, 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 September 22, 2026; the record at its source may have been updated since.
Is CVE-2026-93371 actively exploited?
CVE-2026-93371 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.4% probability of exploitation in the next 30 days (71st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-93371?
CVE-2026-93371 has a CVSS base score of 8.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-93371?
An upstream fix for CVE-2026-93371 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-93371 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-93371

Explore →

Is Your Infrastructure Affected by CVE-2026-93371?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.