CVE-2026-82331— Apache BuildStream tar源提取逃逸漏洞
一分钟漏洞结论
影响对象
Apache Software Foundation Apache BuildStream
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Improper link resolution before file access ('link following') vulnerability in the source plugin of Apache BuildStream running on Python < 3.12 allows malicious source tarballs to write files on the host, with the privileges of the user running BuildStream, v
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一、 漏洞 CVE-2026-82331 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Apache BuildStream: tar source extraction escape
来源: CVE Program / CVE List V5
Vulnerability Description
Improper link resolution before file access ('link following') vulnerability in the `tar` source plugin of Apache BuildStream running on Python < 3.12 allows malicious source tarballs to write files on the host, with the privileges of the user running BuildStream, via symlinks as part of source fetching.
The impact of this issue is mitigated by:
* BuildStream projects should only use trusted sources in their elements as otherwise the build output can also not be trusted
* Tracking a source tarball pins its SHA256 hash, which prevents MITM attacks of users that are fetching an already tracked project
* When running on Python >= 3.12, BuildStream >= 2.3.0 already makes use of the Python `tarfile` filter functionality, which blocks the symlink escape
Users are recommended to upgrade to version 2.8.1, which fixes this issue.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Apache Software Foundation | Apache BuildStream | 0 ~ 2.8.0 | - |
|
二、漏洞 CVE-2026-82331 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-82331 其他参考 (1)
同批安全公告 · Apache Software Foundation · 2026-09-23 · 共 25 条
| CVE-2026-31377 | 7.5 HIGH | Apache Doris FE元服务身份验证不当漏洞 |
| CVE-2026-76183 | Apache Tomcat WebSocket端点安全约束绕过 | |
| CVE-2026-73192 | Apache Sling XSSAPI.getValidHref 跨站脚本漏洞 | |
| CVE-2026-92001 | Apache Sling 解析器资源限制缺失 XSS 漏洞 | |
| CVE-2026-91999 | Apache Sling XSS Webconsole插件跨站脚本漏洞 | |
| CVE-2026-91852 | Apache Sling XSSImpl 跨站脚本漏洞 | |
| CVE-2026-96443 | Apache Doris JDBC驱动远程代码执行漏洞 | |
| CVE-2026-91928 | Apache Sling XSS：消毒器绕过等漏洞 | |
| CVE-2026-94251 | Apache Sling 内容处置过滤器漏洞 | |
| CVE-2026-94243 | Apache Sling Security RefererFilter 弱证据绕过漏洞 | |
| CVE-2026-73581 | Apache Tomcat OpenSSL TLS实现忽略CRL漏洞 | |
| CVE-2026-75973 | Apache Tomcat 跨上下文认证混淆漏洞 | |
| CVE-2026-86247 | Apache Tomcat Native 客户端证书要求降级漏洞 | |
| CVE-2026-77756 | Tomcat 1.0请求处理传输编码漏洞 | |
| CVE-2026-77762 | Tomcat 循环请求池Hpack陈旧漏洞 | |
| CVE-2026-77791 | Apache Tomcat WebSocket关闭时DoS漏洞 | |
| CVE-2026-78383 | Apache Tomcat AJP 拒绝服务漏洞 | |
| CVE-2026-78437 | Apache Tomcat 2.x HTTP/2 拒绝服务漏洞 | |
| CVE-2026-79677 | Apache Tomcat: WebSocket DoS due to lost asynchronous write timeout | |
| CVE-2026-86248 | Apache Tomcat OCSP校验不完整漏洞 |
显示前 20 条，共 25 条。 查看全部 → →
IV. Related Vulnerabilities
Same vendor: Apache Software Foundation
V. Comments for CVE-2026-82331
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