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CVE-2026-57205

SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.203, the authenticated GET /api/user/info/<user_id> and GET /api/user/profile-image/<user_id> endpoints in application/single_app/route_backend_users.py accepted a caller-supplied user_id and read the matching Cosmos DB user-settings document without object-level authorization, allowing a low-privilege authenticated user to retrieve another user's email address
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3092bd8e730b438a2c204cd5eaadc464518916072e9323e5b2af6a504d072d70
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f32af7b7cbdc1e3ff8086ad77631029e575cee9012694c15824c174f5a13da52 · sha256:2d51806b99c155b8… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f32af7b7cbdc1e3ff8086ad77631029e575cee9012694c15824c174f5a13da52 · sha256:2d51806b99c155b8… · /containers/cna/problemTypes/2/descriptions/0

{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f32af7b7cbdc1e3ff8086ad77631029e575cee9012694c15824c174f5a13da52 · sha256:2d51806b99c155b8… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"simplechat","vendor":"microsoft","versions":[{"status":"affected","version":"< 0.241.203"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f32af7b7cbdc1e3ff8086ad77631029e575cee9012694c15824c174f5a13da52 · sha256:2d51806b99c155b8… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f32af7b7cbdc1e3ff8086ad77631029e575cee9012694c15824c174f5a13da52 · sha256:2d51806b99c155b8… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f32af7b7cbdc1e3ff8086ad77631029e575cee9012694c15824c174f5a13da52 · sha256:2d51806b99c155b8… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f32af7b7cbdc1e3ff8086ad77631029e575cee9012694c15824c174f5a13da52 · sha256:2d51806b99c155b8… · /containers/cna/problemTypes/2/descriptions/0
{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f32af7b7cbdc1e3ff8086ad77631029e575cee9012694c15824c174f5a13da52 · sha256:2d51806b99c155b8… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/microsoft/simplechat/blob/main/docs/explanation/fixes/USER_PROFILE_IDOR_AUTHORIZATION_FIX.md","tags":["x_refsource_MISC"],"url":"https://github.com/microsoft/simplechat/blob/main/docs/explanation/fixes/USER_PROFILE_IDOR_AUTHORIZATION_FIX.md"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f32af7b7cbdc1e3ff8086ad77631029e575cee9012694c15824c174f5a13da52 · sha256:2d51806b99c155b8… · /containers/cna/references/1
{"name":"https://github.com/microsoft/simplechat/releases/tag/v0.250.001","tags":["x_refsource_MISC"],"url":"https://github.com/microsoft/simplechat/releases/tag/v0.250.001"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f32af7b7cbdc1e3ff8086ad77631029e575cee9012694c15824c174f5a13da52 · sha256:2d51806b99c155b8… · /containers/cna/references/2
{"name":"https://github.com/microsoft/simplechat/security/advisories/GHSA-x2jq-2m5m-65m4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/microsoft/simplechat/security/advisories/GHSA-x2jq-2m5m-65m4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f32af7b7cbdc1e3ff8086ad77631029e575cee9012694c15824c174f5a13da52 · sha256:2d51806b99c155b8… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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