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CVE-2026-54320— Daytona: Cross-tenant organization takeover via invitation acceptance with an unverified email

CVSS 8.4 · High EPSS 0.21% · P12

Possible ATT&CK Techniques 1AI

T1078.004 · Cloud Accounts

Affected Version Matrix 1

VendorProductVersion RangeStatus
daytonaiodaytona< 0.184.0affected
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I. Basic Information for CVE-2026-54320

Vulnerability Information
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Vulnerability Title
Daytona: Cross-tenant organization takeover via invitation acceptance with an unverified email
Source: CVE Program / CVE List V5
Vulnerability Description
Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. Prior to 0.184.0, organization invitations could be accepted (and declined) by a user whose email matched the invitation but had not been verified. Daytona authenticates users via OIDC and matches an invitation's target email against the email in the caller's token, but the invitation accept and decline paths did not require that email to be verified, unlike organization creation, which already enforced verification. On identity providers that allow self-service signup and issue a session before the email is verified, an actor could register an address matching a pending invitation, leave it unverified, and accept the invitation, joining the target organization with the role the invitation carried (up to Owner). This vulnerability is fixed in 0.184.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Daytona 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Daytona Daytona是美国Daytona团队的一个安全且弹性的基础架构运行时环境，专为 AI 生成的代码执行和代理工作流而设计。 Daytona 0.184.0之前版本存在授权问题漏洞，该漏洞源于未验证邮箱的邀请接受路径，可能导致攻击者通过未验证邮箱接受邀请加入组织并获取组织角色（最高为Owner）。
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

VendorProductAffected VersionsCPESubscribe
daytonaiodaytona < 0.184.0 -

II. Public POCs for CVE-2026-54320

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 7563 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-54320

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Vendor Advisories for CVE-2026-54320 (1)

Same Patch Batch · daytonaio · 2026-06-23 · 6 CVEs total

CVE-2026-543227.7 HIGHDaytona: Cross-org IDOR in organization role update/delete — any org owner can rewrite or
CVE-2026-543217.0 HIGHDaytona: Public sandbox previews remain accessible for up to one hour after being made pri
CVE-2026-543246.5 MEDIUMDaytona: Cross-tenant data leak in notification WebSocket gateway via unverified organizat
CVE-2026-543235.9 MEDIUMDaytona: Git credential leak via git clone with TLS verification disabled
CVE-2026-543194.2 MEDIUMDaytona: Path traversal in sandbox volume id mounts arbitrary host paths into the sandbox

IV. Related Vulnerabilities

Same product: daytona
Same vendor: daytonaio
Same weakness: CWE-287

V. Comments for CVE-2026-54320

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