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| purl | pkg:npm/agents@0.0.0-9e2f4e7 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-hazd-1zmu-dubz
Aliases: CVE-2026-1664 GHSA-r7x9-8ph7-w8cg |
Summary An Insecure Direct Object Reference has been found to exist in `createHeaderBasedEmailResolver()` function within the Cloudflare Agents SDK. The issue occurs because the `Message-ID` and `References` headers are parsed to derive the target agentName and agentId without proper validation or origin checks, allowing an external attacker with control of these headers to route inbound mail to arbitrary Durable Object instances and namespaces . Root cause The `createHeaderBasedEmailResolver()` function lacks cryptographic verification or origin validation for the headers used in the routing logic, effectively allowing external input to dictate internal object routing. Impact Insecure Direct Object Reference (IDOR) in email routing lets an attacker steer inbound mail to arbitrary Agent instances via spoofed Message-ID. Mitigation: * PR: https://github.com/cloudflare/agents/blob/main/docs/email.md ] provides the necessary architectural context for coding agents to mitigate the issue by refactoring the resolver to enforce strict identity boundaries. * Agents-sdk users should upgrade to agents@0.3.7 |
Affected by 2 other vulnerabilities. |
|
VCID-wfzh-76nh-subz
Aliases: GHSA-w5cr-2qhr-jqc5 |
Cloudflare Agents has a Reflected Cross-Site Scripting (XSS) vulnerability in AI Playground site |
Affected by 0 other vulnerabilities. |
|
VCID-xr1u-jyxs-ekdm
Aliases: CVE-2026-1721 GHSA-cvhv-6xm6-c3v4 |
Summary A Reflected Cross-Site Scripting (XSS) vulnerability was discovered in the AI Playground's OAuth callback handler. The `error_description` query parameter was directly interpolated into an HTML script tag without proper escaping, allowing attackers to execute arbitrary JavaScript in the context of the victim's session. Root cause The OAuth callback handler in `site/ai-playground/src/server.ts` directly interpolated the `authError` value, sourced from the `error_description` query parameter, into an inline `<script>` tag. Impact An attacker could craft a malicious link that, when clicked by a victim, would: * Steal user chat message history - Access all LLM interactions stored in the user's session. * Access connected MCP Servers - Interact with any MCP servers connected to the victim's session (public or authenticated/private), potentially allowing the attacker to perform actions on the victim's behalf Mitigation: * PR: https://github.com/cloudflare/agents/pull/841 https://github.com/cloudflare/agents/pull/841 * Agents-sdk users should upgrade to agents@0.3.10 * Developers using configureOAuthCallback with custom error handling in their own applications should ensure all user-controlled input is escaped before interpolation. |
Affected by 0 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| This package is not known to fix vulnerabilities. | ||
| Date | Actor | Action | Vulnerability | Source | VulnerableCode Version |
|---|---|---|---|---|---|
| 2026-06-12T20:58:11.033661+00:00 | GitLab Importer | Affected by | VCID-xr1u-jyxs-ekdm | https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/agents/CVE-2026-1721.yml | 38.6.0 |
| 2026-06-12T20:58:04.584165+00:00 | GitLab Importer | Affected by | VCID-wfzh-76nh-subz | https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/agents/GHSA-w5cr-2qhr-jqc5.yml | 38.6.0 |
| 2026-06-12T20:55:36.337989+00:00 | GitLab Importer | Affected by | VCID-hazd-1zmu-dubz | https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/agents/CVE-2026-1664.yml | 38.6.0 |