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CVE-2026-55576— MaaAssistantArknights: PR-title expression injection in release-preparation.yml

Quick assessment

Affected
MaaAssistantArknights MaaAssistantArknights
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MAA MAA是中国MAA公司的一款明日方舟游戏小助手。 MAA存在安全漏洞，该漏洞源于dev-v2工作流中的release-preparation.yml文件将攻击者控制的github.event.pull_request.title内联到run: shell命令中，导致标题以Release v开头的非草稿fork PR可在generate-changelog作业期间在ubuntu-latest运行器上执行shell命令。

CVSS 8.8 · High EPSS 0.46% · P38

Affected Version Matrix 1

VendorProduct Version RangeStatus
MaaAssistantArknights MaaAssistantArknights < cafc3946059e6337d2089d4fec8b6885ba17c332 affected
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I. Basic Information for CVE-2026-55576

Vulnerability Information
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Vulnerability Title
MaaAssistantArknights: PR-title expression injection in release-preparation.yml
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
MAA 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MAA MAA是中国MAA公司的一款明日方舟游戏小助手。 MAA存在安全漏洞，该漏洞源于dev-v2工作流中的release-preparation.yml文件将攻击者控制的github.event.pull_request.title内联到run: shell命令中，导致标题以Release v开头的非草稿fork PR可在generate-changelog作业期间在ubuntu-latest运行器上执行shell命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MaaAssistantArknights MaaAssistantArknights < cafc3946059e6337d2089d4fec8b6885ba17c332 -

II. Public POCs for CVE-2026-55576

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III. Intelligence Information for CVE-2026-55576

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Patches & Fixes for CVE-2026-55576 (1)

Vendor Advisories for CVE-2026-55576 (1)

IV. Related Vulnerabilities

Same weakness: CWE-78

V. Comments for CVE-2026-55576

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