CVE-2026-53580: Trilium is an open-source hierarchical note-taking application

Q: How do I fix CVE-2026-53580?

trilium: upgrade to 0.104.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-53580 being exploited?

CVE-2026-53580 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-53580 affect?

CVE-2026-53580 affects trilium. Severity is high (CVSS 8.1). Trilium is an open-source hierarchical note-taking application. In versions prior to 0.104.0, the automatic image-download feature accepts file:// URLs in a note's img tags and reads the referenced local file with no path validation, allowi

Q: How urgent is CVE-2026-53580?

Priority 44/100. High severity; Public exploit reference

This month

HIGH 8.1UPGRADE

CVE-2026-53580 is a high-severity flaw (CVSS 8.1) affecting trilium. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Trilium is an open-source hierarchical note-taking application. In versions prior to 0.104.0, the automatic image-download feature accepts file:// URLs in a note's img tags and reads the referenced local file with no path validation, allowing any authenticated user to disclose arbitrary files readable by the Trilium process. When a text note is saved, Trilium scans its HTML for image sources and downloads each external one; because the HTML sanit

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 56%)
CISA exploited list	No
Weakness	CWE-73, CWE-400, CWE-552
Published	2026-08-27
Last modified	2026-10-14

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

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-27 20:17 UTCPublished CVE record published
2026-10-14 15:41 UTCUpdated Record last modified

triliumnotes trilium UPGRADE

Affected: < 0.104.0

Fixed in: 0.104.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 0.104.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade trilium

Note

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

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-2026-53580?

trilium: upgrade to 0.104.0. Exact commands for each OS are on this page.

Is CVE-2026-53580 being exploited?

CVE-2026-53580 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-2026-53580 affect?

CVE-2026-53580 affects trilium. Severity is high (CVSS 8.1). Trilium is an open-source hierarchical note-taking application. In versions prior to 0.104.0, the automatic image-download feature accepts file:// URLs in a note's img tags and reads the referenced local file with no path validation, allowi

How urgent is CVE-2026-53580?

Priority 44/100. High severity; Public exploit reference

Related CVEs

CVE-2026-47727 HIGH 8.8 UPGRADE Trilium is an open-source hierarchical note-taking application
CVE-2026-48996 MEDIUM 6.1 UPGRADE Trilium is an open-source hierarchical note-taking application
CVE-2026-53578 MEDIUM 6.1 UPGRADE Trilium is an open-source hierarchical note-taking application
CVE-2026-53579 MEDIUM 6.1 UPGRADE Trilium is an open-source hierarchical note-taking application
CVE-2026-77438 HIGH 7.5 UPGRADE Trilium is an open-source hierarchical note-taking application

References

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