CVE-2026-54177

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.7%, top 49% 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
6.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.6Exploit: None knownExposed: 0

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

backpack/crud provides Create, Read, Update & Delete (CRUD) functions for Backpack, a collection of Laravel packages that help users build custom administration panels. From 6.0.0 until 6.8.14 and 7.0.38, HasUploadFields methods uploadFileToDisk and uploadMultipleFilesToDisk, used through CrudTrait, and the withFiles() path through FileNameGenerator do not internally reject server-executable file types. An authenticated administrator can achieve remote code execution by using an upload-enabled CRUD field without mimes: and mimetypes: validation when the public disk is web-accessible through php artisan storage:link and the web-server and PHP-FPM configuration executes the stored extension. The legacy path preserves an accepted extension and the newer path derives an extension without blocking dangerous types. The package-level restriction is defense in depth and does not replace application-level upload validation. This issue is fixed in versions 6.8.14 and 7.0.38.

CVSS v3
6.6
EG Score
6.6(medium)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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
Severity66% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
51%
KEV
Not listed

Published

August 20, 2026

Last Modified

September 16, 2026

Advisory Details (7)

Auto-updated Sep 14, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

7.0.38 🌈

Patch available: Laravel-Backpack/CRUD 7.0.38

https://github.com/Laravel-Backpack/CRUD/releases/tag/7.0.38
github_release Patch Available

6.8.14 🌈

Patch available: Laravel-Backpack/CRUD 6.8.14

https://github.com/Laravel-Backpack/CRUD/releases/tag/6.8.14
github_commit Patch Available

commit 76c3a6e50e3f (Laravel-Backpack/CRUD)

Patch available: Laravel-Backpack/CRUD 6.8.15 (contains commit 76c3a6e50e3f)

https://github.com/Laravel-Backpack/CRUD/commit/76c3a6e50e3fbd6d5f633208da5b04acb8322969
github_commit Patch Available

commit 5c5de0af2426 (Laravel-Backpack/CRUD)

Patch available: Laravel-Backpack/CRUD 7.0.41 (contains commit 5c5de0af2426)

https://github.com/Laravel-Backpack/CRUD/commit/5c5de0af242619d0653c7c70c900cd15b1a197c5
github_pr Patch Available

fixes

Patch available: Laravel-Backpack/CRUD 6.8.15 (PR #5994 merged 2026-05-18)

https://github.com/Laravel-Backpack/CRUD/pull/5994
github_pr Patch Available

bloked extensions

Patch available: Laravel-Backpack/CRUD 7.0.41 (PR #5993 merged 2026-05-18)

https://github.com/Laravel-Backpack/CRUD/pull/5993
github Patch Available

HasUploadFields keeps the attacker-supplied file extension — public-disk uploads of `shell.php` reach the webserver · Advisory · Laravel-Backpack/CRUD · GitHub

https://github.com/Laravel-Backpack/CRUD/security/advisories/GHSA-8q2w-pv9p-mjvc

Vendor Advisories for CVE-2026-54177(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)
Packagist(1)
PackageVulnerable rangeFixed inDependents
backpack/crud7.0.0 ... 7.0.9 (38 versions)7.0.38—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 10× 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. 2026-09-18 23:13 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-17 21:19 UTCEG score recompute
  4. 2026-09-17 19:31 UTCEPSS rescore
  5. 2026-09-16 17:52 UTCEG score recompute
  6. 2026-09-16 16:58 UTCEG score recompute
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-16 05:15 UTCEPSS rescore
  9. 2026-09-14 18:35 UTCEG score recompute
  10. 2026-08-20 18:42 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-54177?
CVE-2026-54177 is a medium vulnerability published on August 20, 2026. backpack/crud provides Create, Read, Update & Delete (CRUD) functions for Backpack, a collection of Laravel packages that help users build custom administration panels. From 6.0.0 until 6.8.14 and 7.0.38, HasUploadFields methods uploadFileToDisk and uploadMultipleFilesToDisk, used through…
When was CVE-2026-54177 disclosed?
CVE-2026-54177 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54177 actively exploited?
CVE-2026-54177 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 48.6% of all scored CVEs.
What is the CVSS score of CVE-2026-54177?
CVE-2026-54177 has a CVSS v3 base score of 6.6 (NVD).
How do I remediate CVE-2026-54177?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54177, 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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