CVE-2026-53656

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 99% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: None knownExposed: 0

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

FiftyOne is an open-source platform for refining high-quality datasets and visual AI models. Prior to 1.17.0, the FiftyOne App/API server in fiftyone/server/app.py and the /media route in fiftyone/server/routes/media.py unconditionally return Access-Control-Allow-Origin: *. Because the embedded server is local and unauthenticated, a malicious website visited by the user can read cross-origin responses. The /media endpoint accepts a filesystem path, allowing a drive-by page to read files accessible to the server process and exfiltrate them without additional clicks. The allowed_origins configuration and FIFTYONE_ALLOWED_ORIGINS environment variable now make cross-origin access explicit, while the default policy is same-origin. This issue is fixed in version 1.17.0.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity63% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

July 15, 2026

Last Modified

August 21, 2026

Advisory Details (4)

Auto-updated Aug 21, 2026
Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

v1.17.0

Patch available: voxel51/fiftyone v1.17.0

https://github.com/voxel51/fiftyone/releases/tag/v1.17.0
github_commit Patch Available

commit 7c5b92eec5c7 (voxel51/fiftyone)

Patch available: voxel51/fiftyone v1.17.0 (contains commit 7c5b92eec5c7)

https://github.com/voxel51/fiftyone/commit/7c5b92eec5c7c0210c0c8134351ced77d2800ae0
github_commit Patch Available

commit 6c4fa1b27bf5 (voxel51/fiftyone)

Patch available: voxel51/fiftyone v1.17.0 (contains commit 6c4fa1b27bf5)

https://github.com/voxel51/fiftyone/commit/6c4fa1b27bf53e4ba567742ffd20d033af7b9e64
github Patch Available

FiftyOne App server uses wildcard CORS (Access-Control-Allow-Origin: *), enabling cross-origin reads of local server data · Advisory · voxel51/fiftyone · GitHub

https://github.com/voxel51/fiftyone/security/advisories/GHSA-q78p-hj9h-5466

Vendor Advisories for CVE-2026-53656(1)

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

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
fiftyone0.1.0 ... 1.9.0 (182 versions)1.17.0—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 13× 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 03:44 UTCEG score recompute
  2. 2026-08-30 01:22 UTCEPSS rescore
  3. 2026-08-28 21:41 UTCEPSS rescore
  4. 2026-08-27 21:42 UTCEG score recompute
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-26 22:57 UTCEG score recompute
  7. 2026-08-26 14:46 UTCEPSS rescore
  8. 2026-08-24 19:31 UTCEG score recompute
  9. 2026-08-23 20:15 UTCEG score recompute
  10. 2026-08-23 00:19 UTCEPSS rescore
  11. 2026-08-21 22:27 UTCEG score recompute
  12. 2026-08-21 21:53 UTCEG score recompute
  13. 2026-08-21 21:25 UTCEG score recompute
  14. 2026-07-31 06:54 UTCEG score recompute
  15. 2026-07-26 11:28 UTCEG score recompute
  16. 2026-07-23 03:19 UTCEG score recompute
  17. 2026-07-15 22:19 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-53656?
CVE-2026-53656 is a medium vulnerability published on July 15, 2026. FiftyOne is an open-source platform for refining high-quality datasets and visual AI models. Prior to 1.17.0, the FiftyOne App/API server in fiftyone/server/app.py and the /media route in fiftyone/server/routes/media.py unconditionally return Access-Control-Allow-Origin: *. Because the embedded…
When was CVE-2026-53656 disclosed?
CVE-2026-53656 was first published in the National Vulnerability Database on July 15, 2026, with the most recent update on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53656 actively exploited?
CVE-2026-53656 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 99.4% of all scored CVEs.
What is the CVSS score of CVE-2026-53656?
CVE-2026-53656 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-53656?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53656, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-53656

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