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CVE-2026-50000— SecureDrop: API session token reuse against the Journalist Interface web UI

Quick assessment

Affected
freedomofpress securedrop
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.

SecureDrop 是一个开源的举报人提交系统，供媒体组织安全地接收匿名线人的文件并与其进行通信。在从 2.5.0 到 2.16.0 的版本中， （记者界面）会错误地接受针对 （网页用户界面）的 （API 会话）令牌。这是因为其 维护了一个可变会话密钥前缀，该前缀随每次请求变化并在请求间持续存在。虽然自 2.5.0 版本起，API 会话与网页会话已在 中分离，但前缀损坏导致这两个会话命名空间发生混淆。 若攻击者已掌握保密的 洋葱地址、具备必要的认证权限，并拥有一个近期且未过期的 令牌，则可在该令牌自然过期前（最长

CVSS 5.0 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
freedomofpress securedrop >= 2.5.0, < 2.16.0 affected
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I. Basic Information for CVE-2026-50000

Vulnerability Information
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Vulnerability Title
SecureDrop: API session token reuse against the Journalist Interface web UI
Source: CVE Program / CVE List V5
Vulnerability Description
SecureDrop is an open-source whistleblower submission system that media organizations can use to securely accept documents from, and communicate with anonymous sources. From 2.5.0 until 2.16.0, the `Journalist Interface` can accept an `API session` token against the `web UI` because its `SessionInterface` keeps a mutable session key prefix that changes with each request and persists across requests. API and web sessions were separated in `Redis` starting in version 2.5.0, but prefix corruption confuses those session namespaces. An attacker who already has access to the secret `Journalist Interface` onion address, the required authentication access and a recent nonexpired `API session` token can reuse that token against the `web UI` until its natural expiry, at most eight hours. The corrupted prefix can also prevent logout from deleting the correct `Redis` session, although normal expiry still applies. A compromised journalist can access encrypted submissions and perform broad actions on source submissions, but this issue does not expose plaintext submissions or affect the running system's availability. This issue is fixed in version 2.16.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
freedomofpress securedrop >= 2.5.0, < 2.16.0 -

II. Public POCs for CVE-2026-50000

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III. Intelligence Information for CVE-2026-50000

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Other References for CVE-2026-50000 (3)

IV. Related Vulnerabilities

Same product: securedrop
Same vendor: freedomofpress
Same weakness: CWE-863