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Back to active CVEs
Medium · CVSS 6.5CVE-2026-57491

FileRise: ZIP extraction writes blocked file extensions to disk, bypassing the upload blocklistCVE-2026-57491

Answer in brief

CVE-2026-57491 records a Medium severity (CVSS 6.5) vulnerability in FileRise: ZIP extraction writes blocked file extensions to disk, bypassing the upload blocklist. The current sources do not mark it as known exploited. The current feed maps error311/FileRise (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 14, 2026Updated Oct 14, 2026Source checked Oct 14, 2026First seen by HOL Oct 14, 2026Material review Oct 14, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps error311/FileRise (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
error311/FileRisegeneric<3.16.03.16.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for error311/FileRise.
  2. 2Review the reported fix. Update error311/FileRise to 3.16.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 14, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.16.0, FileRise archive extraction does not apply UploadNamePolicy::isAllowedForWrite() before ZipArchive::extractTo() writes entries into the destination directory. An authenticated user with upload and extract permissions can place a blocked extension such as a PHP-family file inside a ZIP and cause it to be written to disk even when normal uploads reject that filename. Post-extraction metadata pruning does not remove the blocked file, so deployments that execute uploaded content may permit code execution. This issue is fixed in version 3.16.0.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • FileRise: Session-scoped TOTP rate limiting permits repeated verification attemptsSame error311/filerise package
  • FileRise renameFolder omits destination-parent authorizationSame error311/filerise package
  • FileRise: TOTP codes are not single-use — valid 6-digit code can be replayed within its window (capture-replay)Same error311/filerise package
  • FileRise: 2FA disable and TOTP enrollment lack step-up re-authentication; enrollment activates before verificationSame error311/filerise package
  • FileRise: Authenticated path traversal escapes configured storage root through inherited ACLsSame error311/filerise package
  • FileRise OIDC login can bind an attacker identity to an existing local accountSame error311/filerise package

Record context

Vulnerability class
Arbitrary File Read
EPSS
Not reported
CWE IDs
CWE-434
Source
CVE List V5
Source checked
Oct 14, 2026
References
3 linked sources
Open source record