CVE-2026-32116: Magic Wormhole makes it possible to get arbitrary-sized files and directories from one computer to another

Q: How do I fix CVE-2026-32116?

magic wormhole: upgrade to 0.23.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-32116 being exploited?

CVE-2026-32116 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-2026-32116 affect?

CVE-2026-32116 affects magic wormhole. Severity is high (CVSS 8.1). Magic Wormhole makes it possible to get arbitrary-sized files and directories from one computer to another. From 0.21.0 to before 0.23.0, receiving a file (wormhole receive) from a malicious party could result in overwriting critical local

Routine

HIGH 8.1UPGRADE

CVE-2026-32116 is a high-severity flaw (CVSS 8.1) affecting magic wormhole. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Magic Wormhole makes it possible to get arbitrary-sized files and directories from one computer to another. From 0.21.0 to before 0.23.0, receiving a file (wormhole receive) from a malicious party could result in overwriting critical local files, including ~/.ssh/authorized_keys and .bashrc. This could be used to compromise the receiver's computer. Only the sender of the file (the party who runs wormhole send) can mount the attack. Other parties

Why this priority

High severity

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	0.4% (top 71%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-03-12
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: magic-wormhole project

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

Am I affected?

Timeline

2026-03-12 18:16 UTCPublished CVE record published
2026-06-17 10:35 UTCUpdated Record last modified

magic-wormhole project magic wormhole UPGRADE

Affected: >= 0.21.0 and < 0.23.0

Fixed in: 0.23.0

Safe to downgrade to: a release before 0.21.0

1. Check installed version

pip show magic-wormhole

2. UPGRADE to 0.23.0

pip install --upgrade "magic-wormhole>=0.23.0"

3. If no update is available yet, DOWNGRADE to a release before 0.21.0

pip index versions magic-wormhole pip install "magic-wormhole<0.21.0"

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-2026-32116?

magic wormhole: upgrade to 0.23.0. Exact commands for each OS are on this page.

Is CVE-2026-32116 being exploited?

CVE-2026-32116 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-2026-32116 affect?

CVE-2026-32116 affects magic wormhole. Severity is high (CVSS 8.1). Magic Wormhole makes it possible to get arbitrary-sized files and directories from one computer to another. From 0.21.0 to before 0.23.0, receiving a file (wormhole receive) from a malicious party could result in overwriting critical local

How urgent is CVE-2026-32116?

Priority 36/100. High severity

References

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