CVE-2026-80426

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-26. the CNA's CVSS baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 4 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

FiftyOne renders a dataset field's description as markup. The sidebar field-information component at app/packages/core/src/components/FieldLabelAndInfo/index.tsx passes the description string to React's dangerouslySetInnerHTML, and no layer between storage and render escapes or sanitises it; the neighbouring info values in the same component are rendered as React children and are escaped, so the description is the only raw path. A description is free-form text held in the dataset schema, so it persists in the database and travels with an exported or published dataset. Opening a dataset obtained from another party and hovering the field runs the stored markup in the application's origin. That origin is shared with the FiftyOne server, whose media route returns the contents of a caller-named absolute path and which is unauthenticated in the open-source server, so the injected script can read local files and reach the dataset and operator endpoints as the viewing user.

CVSS v3
7.1
EG Score
7.1(high)
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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

August 26, 2026

Last Modified

August 29, 2026

Advisory Details (5)

Auto-updated Aug 26, 2026
Patch available. Sources: github_pr, github_release.
generic

FiftyOne before 1.21.0 Stored Cross-Site Scripting via Unescaped Field Description | Advisories | VulnCheck

https://www.vulncheck.com/advisories/fiftyone-before-1.21.0-stored-cross-site-scripting-via-unescaped-field-description
github_release Patch Available

v1.21.0

Patch available: voxel51/fiftyone v1.21.0

https://github.com/voxel51/fiftyone/releases/tag/v1.21.0
generic

fiftyone/app/packages/core/src/components/FieldLabelAndInfo/index.tsx at v1.20.1 · voxel51/fiftyone · GitHub

https://github.com/voxel51/fiftyone/blob/v1.20.1/app/packages/core/src/components/FieldLabelAndInfo/index.tsx
github_pr Patch Available

Fix XSS in FiftyOne App via field description

Patch available: voxel51/fiftyone v1.21.0 (PR #8117 merged 2026-07-25)

https://github.com/voxel51/fiftyone/pull/8117
generic

GitHub - voxel51/fiftyone: Refine high-quality datasets and visual AI models · GitHub

https://github.com/voxel51/fiftyone

Vendor Advisories for CVE-2026-80426(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 20× 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.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 23:05 UTCGHSA enrichment
  3. 2026-08-29 11:59 UTCEG score recompute
  4. 2026-08-29 11:59 UTCGHSA enrichment
  5. 2026-08-29 03:27 UTCEG score recompute
  6. 2026-08-29 03:27 UTCGHSA enrichment
  7. 2026-08-28 21:42 UTCEPSS rescore
  8. 2026-08-28 16:22 UTCGHSA enrichment
  9. 2026-08-28 05:12 UTCGHSA enrichment
  10. 2026-08-27 18:04 UTCEG score recompute
  11. 2026-08-27 18:04 UTCGHSA enrichment
  12. 2026-08-27 14:25 UTCEPSS rescore
  13. 2026-08-27 06:40 UTCGHSA enrichment
  14. 2026-08-26 19:22 UTCEG score recompute
  15. 2026-08-26 19:22 UTCGHSA enrichment
  16. 2026-08-26 18:41 UTCEG score recompute
  17. 2026-08-26 18:41 UTCGHSA enrichment
  18. 2026-08-26 16:37 UTCEG score recompute
  19. 2026-08-26 15:55 UTCEG score recompute
  20. 2026-08-26 15:54 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-80426?
CVE-2026-80426 is a high vulnerability published on August 26, 2026. FiftyOne renders a dataset field's description as markup. The sidebar field-information component at app/packages/core/src/components/FieldLabelAndInfo/index.tsx passes the description string to React's dangerouslySetInnerHTML, and no layer between storage and render escapes or sanitises it; the…
When was CVE-2026-80426 disclosed?
CVE-2026-80426 was first published in the National Vulnerability Database on August 26, 2026, with the most recent update on August 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-80426 actively exploited?
CVE-2026-80426 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 86.2% of all scored CVEs.
What is the CVSS score of CVE-2026-80426?
CVE-2026-80426 has a CVSS v4.0 base score of 7.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-80426?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80426, 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.

Dependency Blast Radius

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