CVE-2026-103670

HighCVSS 7.5/10Last modified Oct 15, 2026

Description

When a Gitea Actions run was inserted, older runs in the same workflow-level concurrency group were cancelled without checking whether the new run still needed approval. Because fork pull request runs are inserted under the base repository, a user who can open a pull request from a fork could cancel trusted in-progress runs that share a concurrency group with `cancel-in-progress` enabled, without approval and without running any code. On self-hosted runners this can interrupt deployments and leave partial state behind.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-667

Affected software

No affected versions have been published.

Timeline

Published: Oct 6, 2026
Last modified: Oct 15, 2026
NVD status: Analyzed

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