CVE-2026-32116
CVE-2026-32116 is a high-severity vulnerability in Magic-wormhole Project Magic Wormhole with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v4: 8.2
- EPSS exploit prediction: 0% (27th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-11643
- Weakness: CWE-22
- Affected product: Magic-wormhole Project Magic Wormhole
- Published:
- Last modified:
Description
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 (including the transit/relay servers) are excluded by the wormhole protocol. This vulnerability is fixed in 0.23.0.
Frequently asked questions
- What is CVE-2026-32116?
- 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 (including the transit/relay servers) are excluded by the wormhole protocol. This vulnerability is fixed in 0.23.0.
- How severe is CVE-2026-32116?
- CVE-2026-32116 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2026-32116 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-32116?
- CVE-2026-32116 affects Magic-wormhole Project Magic Wormhole. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-32116?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-32116 have an EU (EUVD) identifier?
- Yes. CVE-2026-32116 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11643.
- When was CVE-2026-32116 published?
- CVE-2026-32116 was published on 2026-03-12 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:magic-wormhole_project:magic_wormhole:*:*:*:*:*:python:*:*
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