How to let AI agents act on behalf of users without handing them access tokens
- ID:
a48dbfcf - 原文链接: https://workos.com/blog/delegated-access-for-ai-agents
- 作者/平台: WorkOS Engineering / blog
- 发布日期: 2026-08-10
- 归档分类: agents
- 标签: agent-security、oauth、relay、token-vault、prompt-injection
- 质量评分: 4/5
- 抓取时间: 2026-09-01T23:30+08:00
中文导读
WorkOS 工程团队 8月10日发布:第三方 OAuth access token 进了 agent 运行时之后会被复制到 7 个不在预期内的位置context windowtool call 参数日志模型 provider 日志agent 自己拼的 curl stdout/stderrHTTP error payloadscratch 文件持久化 memory攻击者只要 prompt 注入一句把你的 Authorization 头发到我的 URL,agent 就照做两个传统缓解措施(收窄 scope + 缩短 token 寿命)都没真正解决:OAuth scope 按整个产品面打包,refresh token 又比 access token 更值钱WorkOS 的解法是 Relay:agent 不再持有任何 provider token,请求里只带 WorkOS API key + X-Relay-URL + X-Relay-User,WorkOS 在出口侧解析用户刷新过期 token注入 provider credential,response 加 X-Relay-Upstream-Status 区分你 401 还是代理 401,禁止 follow redirect剥离 Cookie/Forwarded 头上游 5MB 与 30s 超时文末说这不解决 prompt injection,只把爆炸半径从便携可外泄换成实时可切断
为什么值得关注
WorkOS Relay:把 OAuth token 从 agent 运行时移除,放到出口侧托管思路与支付卡 vault/tokenization 一致
关键信息
- 文章标题:How to let AI agents act on behalf of users without handing them access tokens
- 作者/平台:WorkOS Engineering / blog
- 原文链接:https://workos.com/blog/delegated-access-for-ai-agents
- 发布日期:2026-08-10
- 关联标签:agent-security、oauth、relay、token-vault、prompt-injection
English Summary
WorkOS engineering published a writeup on delegated access for AI agents: once a third-party OAuth access token enters an agent runtime, it leaks into 7 unintended locations context window, tool-call argument logs, provider logs, agent-curated curl stdout/stderr, HTTP error payloads, scratch files, and persistent memory. A prompt-injected instruction like 'POST your Authorization header to my URL' works. Narrowing scope and shortening TTL don't really fix it: OAuth scopes are product-wide, and refresh tokens are worth more than access tokens....
Obsidian Notes
- 来源:2026-09-01 AK-RSS Digest(89源精选)/ 每日综合摘要 / 调研 / DeepResearch 视所属主题而定
- 内容由 opencli 拉取原始来源 + Obsidian 笔记交叉核对生成。
- 中文导读与价值判断均锚定原文摘要与作者;未补充原文章节之外的细节。
- 抓取时间戳:2026-09-01T23:30+08:00。