CVE-2025-34291 漏洞深度分析

漏洞概述

CVE 编号： CVE-2025-34291
CVSS 评分： 9.4（CRITICAL）
CVSS 向量： CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE 分类： CWE-346
漏洞状态： Analyzed
发布时间： 2025-12-05T23:15:47.433
最后更新： 2026-07-14T23:17:22.617

漏洞描述

Langflow versions up to and including 1.6.9 contain a chained vulnerability that enables account takeover and remote code execution. An overly permissive CORS configuration (allow_origins='*' with allow_credentials=True) combined with a refresh token cookie configured as SameSite=None allows a malicious webpage to perform cross-origin requests that include credentials and successfully call the refresh endpoint. An attacker-controlled origin can therefore obtain fresh access_token / refresh_token pairs for a victim session. Obtained tokens permit access to authenticated endpoints — including built-in code-execution functionality — allowing the attacker to execute arbitrary code and achieve full system compromise.

影响分析

此漏洞的具体影响取决于实际利用场景。"

修复建议

1. 及时关注厂商发布的安全更新和补丁
2. 升级受影响组件到最新版本
3. 如无法立即升级，参考厂商提供的临时缓解措施
4. 加强网络访问控制和监控

参考链接

1. https://github.com/langflow-ai/langflow
2. https://www.obsidiansecurity.com/blog/cve-2025-34291-critical-account-takeover-and-rce-vulnerability-in-the-langflow-ai-agent-workflow-platform
3. https://www.vulncheck.com/advisories/langflow-cors-misconfiguration-to-token-hijack-and-rce
4. https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-34291
5. https://www.crowdsec.net/vulntracking-report/cve-2025-34291