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CVE-2026-3693

A flaw has been found in Shy2593666979 AgentChat up to 2.3.0. This issue affects the function get_user_info/update_user_info of the file /src/backend/agentchat/api/v1/user.py of the component User Endpoint. This manipulation of the argument user_id causes improper control of resource identifiers. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2cd0818680078bc27fa8b95cc9c309b88ce9faeb19ec15f767897fceaa170218
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"modules":["User Endpoint"],"product":"AgentChat","vendor":"Shy2593666979","versions":[{"status":"affected","version":"2.0"},{"status":"affected","version":"2.1"},{"status":"affected","version":"2.2"},{"status":"affected","version":"2.3.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-99","description":"Improper Control of Resource Identifiers","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"tags":["related"],"url":"https://github.com/CC-T-454455/Vulnerabilities/tree/master/agent-chat/vulnerability-1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/references/4
{"tags":["exploit"],"url":"https://github.com/CC-T-454455/Vulnerabilities/tree/master/agent-chat/vulnerability-2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/references/5
{"name":"VDB-349640 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/?ctiid.349640"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/references/1
{"name":"VDB-349640 | Shy2593666979 AgentChat User Endpoint user.py update_user_info resource injection","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/?id.349640"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/references/0
{"name":"Submit #765589 | Shy2593666979 AgentChat <= v2.3.0 Authorization Bypass","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.765589"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/references/2
{"name":"Submit #765590 | Shy2593666979 AgentChat <= v2.3.0 Authorization Bypass (Duplicate)","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.765590"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43e31118f8e2caf3572b6ac9dd8172b7283b67b478c5f56fde57f8261bdf7659 · sha256:f168e8e6fffdfd03… · /containers/cna/references/3

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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