CVE-2026-55576CWE-78CWE-94command-injectioncode-injection

CVE-2026-55576

published July 16, 2026

CVSS
8.8
EPSS
0%
Percentile
39.0
In the wild
Unconfirmed
What it is

MaaAssistantArknights is a one-click tool for daily Arknights tasks. In the current dev-v2 workflow, .github/workflows/release-preparation.yml inlined attacker-controlled github.event.pull_request.title into a run: shell command during the pull_request opened, reopened, and ready_for_review events, so a non-draft fork PR whose title starts with Release v could execute shell commands on the ubuntu-latest runner during the generate-changelog job. This vulnerability is fixed by commit cafc3946059e6337d2089d4fec8b6885ba17c332.

The record
Technical detail
CVSS
8.8 · NONE
CVSS v4.0
Not supplied
EPSS
0.00461 · 39.0th percentile
Weaknesses
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'); CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-07-16T02:17Z
References (2)
EPSS history
Timeline
  • 15 JUL 21:02Z
    MaaAssistantArknights: PR-title expression injection in release-preparation.yml
    cvelistv5