CVE-2022-46165: Syncthing is an open source, continuous file synchronization program

Q: How do I fix CVE-2022-46165?

syncthing: upgrade to 1.23.5. Exact commands for each OS are on this page.

Q: Is CVE-2022-46165 being exploited?

CVE-2022-46165 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-2022-46165 affect?

CVE-2022-46165 affects syncthing. Severity is medium (CVSS 4.6). Syncthing is an open source, continuous file synchronization program. In versions prior to 1.23.5 a compromised instance with shared folders could sync malicious files which contain arbitrary HTML and JavaScript in the name. If the owner of

Q: How urgent is CVE-2022-46165?

Priority 35/100. Public exploit reference

Routine

MEDIUM 4.6UPGRADE

CVE-2022-46165 is a medium-severity flaw (CVSS 4.6) affecting syncthing. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Syncthing is an open source, continuous file synchronization program. In versions prior to 1.23.5 a compromised instance with shared folders could sync malicious files which contain arbitrary HTML and JavaScript in the name. If the owner of another device looks over the shared folder settings and moves the mouse over the latest sync, a script could be executed to change settings for shared folders or add devices automatically. Additionally adding

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.6 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-06-06
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2023-06-06 18:15 UTCPublished CVE record published
2026-06-17 05:11 UTCUpdated Record last modified

syncthing syncthing UPGRADE

Affected: < 1.23.5

Fixed in: 1.23.5

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.23.5 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade syncthing

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-2022-46165?

syncthing: upgrade to 1.23.5. Exact commands for each OS are on this page.

Is CVE-2022-46165 being exploited?

CVE-2022-46165 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-2022-46165 affect?

CVE-2022-46165 affects syncthing. Severity is medium (CVSS 4.6). Syncthing is an open source, continuous file synchronization program. In versions prior to 1.23.5 a compromised instance with shared folders could sync malicious files which contain arbitrary HTML and JavaScript in the name. If the owner of

How urgent is CVE-2022-46165?

Priority 35/100. Public exploit reference

References

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