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CVE-2026-109362— Heym v0.0.5 before v0.0.113 Broken Access Control via Workflow Execution Tokens

Quick assessment

Affected
heymrun heym
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.

Heym 从 v0.0.5 到 v0.0.113（不含 v0.0.113）版本中存在一个Broken Access Control（越权访问控制）漏洞，该漏洞允许前协作人员在共享关系移除后，通过复用受限范围的 令牌，继续执行 JWT 认证的工作流。攻击者可创建有效期长达10年的令牌，而工作流所有者无法列出或撤销这些令牌，攻击者可通过反复执行工作流来持续消耗共享凭据。

CVSS 5.4 · Medium EPSS 0.17% · P6

Affected Version Matrix 2

VendorProduct Version RangeStatus
heymrun heym 0.0.5< 0.0.113 affected
0.0.113 unaffected
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I. Basic Information for CVE-2026-109362

Vulnerability Information
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Vulnerability Title
Heym v0.0.5 before v0.0.113 Broken Access Control via Workflow Execution Tokens
Source: CVE Program / CVE List V5
Vulnerability Description
Heym v0.0.5 before v0.0.113 contains a broken access control vulnerability that allows former collaborators to keep executing JWT-auth workflows by reusing scoped workflow:execute tokens after share removal. Attackers can mint a token with a TTL up to 10 years, which the owner cannot list or revoke, and repeatedly run the workflow consuming shared credentials.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
heymrun heym 0.0.5 ~ 0.0.113 -

II. Public POCs for CVE-2026-109362

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III. Intelligence Information for CVE-2026-109362

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Vendor Advisories for CVE-2026-109362 (2)

IV. Related Vulnerabilities

Same product: heym
Same vendor: heymrun
Same weakness: CWE-613

V. Comments for CVE-2026-109362

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