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CVE-2026-16075

A flaw has been found in AstrBotDevs AstrBot up to 4.25.5. This vulnerability affects the function OpenApiRoute.get_chat_sessions of the file astrbot/dashboard/routes/open_api.py of the component session-listing Endpoint. This manipulation of the argument Username causes authorization bypass. 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:c25fde99ec49b82f59a27e8b827a2c35cce0bc106652c80b7ee6924b43aafbb2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-639","description":"Authorization Bypass","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-285","description":"Improper Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:astrbot:astrbot:*:*:*:*:*:*:*:*"],"modules":["session-listing Endpoint"],"product":"AstrBot","vendor":"AstrBotDevs","versions":[{"status":"affected","version":"4.25.0"},{"status":"affected","version":"4.25.1"},{"status":"affected","version":"4.25.2"},{"status":"affected","version":"4.25.3"},{"status":"affected","version":"4.25.4"},{"status":"affected","version":"4.25.5"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-639","description":"Authorization Bypass","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-285","description":"Improper Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/problemTypes/1/descriptions/0

Source references

5 source assertions
{"tags":["exploit"],"url":"https://gist.github.com/YLChen-007/5fee3adfd95333b0f4eff8165af61f81"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/references/4
{"name":"CVE-2026-16075 | CVE Analysis and Report","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-16075"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/references/2
{"name":"Submit #852863 | AstrBotDevs AstrBot <= 4.25.5 Authorization Bypass Through User-Controlled Key (CWE-639)","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/852863"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/references/3
{"name":"VDB-379790 | AstrBotDevs AstrBot session-listing Endpoint open_api.py OpenApiRoute.get_chat_sessions authorization","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/379790"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/references/0
{"name":"VDB-379790 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/379790/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3f6c4f5abf1553e7e85d3be8e73ebfc537f6d2f4d84dd80700a6c7b4bedb0b55 · sha256:79ae373910e70aaa… · /containers/cna/references/1

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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