CVE-2026-48722
Nextflow: Incorrect default permissions in the nextflow auth login command
- State
- Published
- Severity
- 5.5 Medium
- Published
- Sep 15, 2026
- Updated
- Sep 17, 2026
- Reserved
- May 22, 2026
Description
Nextflow is a DSL for data-driven computational pipelines. From 25.09.2-edge until 25.10.6 and 26.04.3, nextflow auth login writes Seqera Platform OIDC bearer tokens to ${NXF_HOME:-~/.nextflow}/seqera-auth.config through AuthCommandImpl.writeConfig in plugins/nf-tower/src/main/io/seqera/tower/plugin/auth/AuthCommandImpl.groovy without setting restrictive file permissions, allowing the default umask 022 to create the file with mode 0644. On a multi-user POSIX host, a local user who can traverse the victim's home directory can read seqera-auth.config and impersonate the victim against Seqera Platform within the token's scope. Single-user systems and headless CI runners that do not use the interactive login flow are not affected. This issue is fixed in 25.10.6 and 26.04.3.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
nextflownextflow-io |
|
References
- https://github.com/nextflow-io/nextflow/security/advisories/GHSA-92qf-fcph-v5wr
- https://github.com/nextflow-io/nextflow/pull/7182
- https://github.com/nextflow-io/nextflow/commit/41a5f24afec8a6e9769a24cae5e08b5462fbfdc1
- https://github.com/nextflow-io/nextflow/commit/a2813c610a3e7f13d7a0a0b1b543b7ad47586eaa
- https://github.com/nextflow-io/nextflow/releases/tag/v25.10.6
- https://github.com/nextflow-io/nextflow/releases/tag/v26.04.3
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