CVE-2026-55576

HighCVSS 8.8/10Last modified Aug 12, 2026

Description

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.

Metrics

CVSS 4.0 8.8/10CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

Affected software

VendorProductVersions
MaaAssistantArknightsMaaAssistantArknights< cafc3946059e6337d2089d4fec8b6885ba17c332

References

Timeline

Published
Jul 15, 2026
Last modified
Aug 12, 2026
NVD status
Deferred

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CVE-2026-55576: High severity, CVSS 8.8 | Vulnix