CVE-2025-2886— Terminating targets role delegations are not respected in tough
Quick assessment
Affected
AWS tough
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.
Amazon tough是美国亚马逊（Amazon）公司的 一个The Update Framework（TUF） 存储库的 Rust 客户端库。 Amazon tough 0.20.0之前版本存在安全漏洞，该漏洞源于缺少对终止委托的验证，可能导致客户端从错误的源获取目标。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-2886
Vulnerability Information
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Vulnerability Title
Terminating targets role delegations are not respected in tough
Source: CVE Program / CVE List V5
Vulnerability Description
Missing validation of terminating delegation causes the client to continue searching the defined delegation list, even after searching a terminating delegation. This could cause the client to fetch a target from an incorrect source, altering the target contents. Users should upgrade to tough version 0.20.0 or later and ensure any forked or derivative code is patched to incorporate the new fixes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
控制流实现总是不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Amazon tough 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Amazon tough是美国亚马逊（Amazon）公司的 一个The Update Framework（TUF） 存储库的 Rust 客户端库。 Amazon tough 0.20.0之前版本存在安全漏洞，该漏洞源于缺少对终止委托的验证，可能导致客户端从错误的源获取目标。
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
II. Public POCs for CVE-2025-2886
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2025-2886 (1)
Other References for CVE-2025-2886 (1)
Same Patch Batch · AWS · 2025-03-27 · 4 CVEs total
| CVE-2025-2885 | Root metadata version not validated in tough | |
| CVE-2025-2888 | Improper timestamp caching during snapshot rollback in tough | |
| CVE-2025-2887 | Failure to detect delegated target rollback in tough |
IV. Related Vulnerabilities
Same product: tough
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Multiple Path Traversal Variants in awslabs/tough -
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Improper timestamp caching during snapshot rollback in tough -
CVE-2025-2887
Failure to detect delegated target rollback in tough
Same vendor: AWS
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V. Comments for CVE-2025-2886
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