Is CVE-2026-22810 in the CISA KEV catalog?

No. CVE-2026-22810 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-22810?

CVE-2026-22810 has a CVSS v3 base score of 8.2 (HIGH).

What is the EPSS score for CVE-2026-22810?

CVE-2026-22810 has an EPSS score of 0.21% (11th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-22810?

Upgrade Joplin to 3.5.7 or later.

CVE & CISA-KEV Catalog

CVE-2026-22810

HIGH

8.2

CVSS v3

NVD

Description

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Versions prior to 3.5.7 contain a path traversal vulnerability in the importer which allows overwriting arbitrary files on disk. The OneNote converter does not sanitize the names of embedded files before writing them to disk. As a result, it's possible for an attacker to create a malicious .one file that includes file names containing ../../, that are then interpreted as part of the target path when extracting attachments from the .one file. This issue has been patched in version 3.5.7.

CWE-24

How to fix

Remediation Available

JoplinWindows application

Affected:3.5.7Fixed in:3.5.7Laurent Cozic

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Exploit Intelligence

0.21%probability of exploitation in 30 days

11thpercentile

Low risk: more likely to be exploited than 11% of all known CVEs.

References

Patch2

Vendor Advisory1

github.com

Issue Tracking1

github.com

Product1

github.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-02.