CVE-2026-35583— Emissary has a Path Traversal via Blacklist Bypass in Configuration API
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I. Basic Information for CVE-2026-35583
Vulnerability Information
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Vulnerability Title
Emissary has a Path Traversal via Blacklist Bypass in Configuration API
Source: NVD (National Vulnerability Database)
Vulnerability Description
Emissary is a P2P based data-driven workflow engine. Prior to 8.39.0, the configuration API endpoint (/api/configuration/{name}) validated configuration names using a blacklist approach that checked for \, /, .., and trailing .. This could potentially be bypassed using URL-encoded variants, double-encoding, or Unicode normalization to achieve path traversal and read configuration files outside the intended directory. This vulnerability is fixed in 8.39.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Emissary 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Emissary是National Security Agency开源的一个分布式 P2P 数据驱动工作流框架。 Emissary 8.39.0之前版本存在路径遍历漏洞，该漏洞源于配置API端点使用黑名单方法验证配置名称，可能被URL编码变体、双重编码或Unicode规范化绕过，可能导致路径遍历和读取预期目录外的配置文件。
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 |
|---|---|---|---|---|
| NationalSecurityAgency | emissary | < 8.39.0 | - |
II. Public POCs for CVE-2026-35583
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|---|
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Same Patch Batch · NationalSecurityAgency · 2026-04-07 · 4 CVEs total
| CVE-2026-35580 | 9.1 CRITICAL | Emissary has GitHub Actions Shell Injection via Workflow Inputs |
| CVE-2026-35581 | 7.2 HIGH | Emissary has a Command Injection via PLACE_NAME Configuration in Executrix |
| CVE-2026-35571 | 4.8 MEDIUM | Emissary has Stored XSS via Navigation Template Link Injection |
IV. Related Vulnerabilities
Same product: emissary
- CVE-2026-35582
Emissary has an OS Command Injection via Unvalidated IN_FILE - CVE-2026-35581
Emissary has a Command Injection via PLACE_NAME Configuratio - CVE-2026-35580
Emissary has GitHub Actions Shell Injection via Workflow Inp - CVE-2026-35571
Emissary has Stored XSS via Navigation Template Link Injecti - CVE-2025-27508
Emissary Use of a Broken or Risky Cryptographic Algorithm
Same vendor: NationalSecurityAgency
- CVE-2026-35582
Emissary has an OS Command Injection via Unvalidated IN_FILE - CVE-2026-35581
Emissary has a Command Injection via PLACE_NAME Configuratio - CVE-2026-35580
Emissary has GitHub Actions Shell Injection via Workflow Inp - CVE-2026-35571
Emissary has Stored XSS via Navigation Template Link Injecti - CVE-2025-27508
Emissary Use of a Broken or Risky Cryptographic Algorithm
Same weakness: CWE-22
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npitre cramfs-tools Directory cramfsck.c do_directory path t - CVE-2022-50956
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