CVE-2026-33329: FileRise is a self-hosted web file manager / WebDAV server

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HIGH 8.1UPGRADE

CVE-2026-33329 is a high-severity flaw (CVSS 8.1) affecting filerise. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FileRise is a self-hosted web file manager / WebDAV server. From version 1.0.1 to before version 3.10.0, the resumableIdentifier parameter in the Resumable.js chunked upload handler (UploadModel::handleUpload()) is concatenated directly into filesystem paths without any sanitization. An authenticated user with upload permission can exploit this to write files to arbitrary directories on the server, delete arbitrary directories via the post-assemb

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-22, CWE-73
Published	2026-03-24
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: filerise

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-24 20:16 UTCPublished CVE record published
2026-06-17 10:37 UTCUpdated Record last modified

filerise filerise UPGRADE

Affected: >= 1.0.1 and < 3.10.0

Fixed in: 3.10.0

Safe to downgrade to: a release before 1.0.1

1. Check installed version

apt-cache policy filerise || rpm -q filerise || filerise --version

2. UPGRADE to 3.10.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade filerise

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade filerise

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.0.1 (Debian / Ubuntu)

apt-cache madison filerise sudo apt install filerise=<VERSION_BEFORE_1.0.1> sudo apt-mark hold filerise

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list filerise sudo dnf downgrade filerise-<VERSION_BEFORE_1.0.1> sudo dnf versionlock add filerise

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33329?

filerise: upgrade to 3.10.0. Exact commands for each OS are on this page.

Is CVE-2026-33329 being exploited?

CVE-2026-33329 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33329 affect?

CVE-2026-33329 affects filerise. Severity is high (CVSS 8.1). FileRise is a self-hosted web file manager / WebDAV server. From version 1.0.1 to before version 3.10.0, the resumableIdentifier parameter in the Resumable.js chunked upload handler (UploadModel::handleUpload()) is concatenated directly int

How urgent is CVE-2026-33329?

Priority 43/100. High severity; Public exploit reference

Related CVEs

CVE-2026-33477 MEDIUM 4.3 UPGRADE FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations
CVE-2026-33330 HIGH 7.1 UPGRADE FileRise is a self-hosted web file manager / WebDAV server
CVE-2026-33072 HIGH 8.2 UPGRADE FileRise is a self-hosted web file manager / WebDAV server
CVE-2026-33071 MEDIUM 4.3 UPGRADE FileRise is a self-hosted web file manager / WebDAV server
CVE-2026-33070 LOW 3.7 UPGRADE FileRise is a self-hosted web file manager / WebDAV server

References

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