# CVE-2026-48722

## Summary

- **CVE ID:** CVE-2026-48722
- **Severity:** MEDIUM
- **CVSS Score:** 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
- **CWE:** CWE-276, CWE-732
- **Published:** Sep 15, 2026
- **Last Modified:** Sep 17, 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.

## Affected Products

- nextflow-io — nextflow (>= 25.09.2-edge, < 25.10.6)
- nextflow-io — nextflow (>= 25.11.0-edge, < 26.04.3)

## References

- [CNA](https://github.com/nextflow-io/nextflow/security/advisories/GHSA-92qf-fcph-v5wr)
- [CNA](https://github.com/nextflow-io/nextflow/pull/7182)
- [CNA](https://github.com/nextflow-io/nextflow/commit/41a5f24afec8a6e9769a24cae5e08b5462fbfdc1)
- [CNA](https://github.com/nextflow-io/nextflow/commit/a2813c610a3e7f13d7a0a0b1b543b7ad47586eaa)
- [CNA](https://github.com/nextflow-io/nextflow/releases/tag/v25.10.6)
- [CNA](https://github.com/nextflow-io/nextflow/releases/tag/v26.04.3)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.10%
- **EPSS Percentile:** 1.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._