CVE Explorer
CVE-2026-21520
Exposure of Sensitive Information to an Unauthorized Actor in Copilot Studio allows a unauthenticated attacker to view sensitive information through network attack vector
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"Microsoft Copilot Studio","vendor":"Microsoft","versions":[{"status":"affected","version":"-"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ea031dbb20b13e0b39a64bc1ac103f71dae2d02d68b11d635a1e3ab3ddd8aa0c · sha256:37e9149884cfe649… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C/CR:H/IR:L/AR:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ea031dbb20b13e0b39a64bc1ac103f71dae2d02d68b11d635a1e3ab3ddd8aa0c · sha256:37e9149884cfe649… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-77","description":"CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')","lang":"en-US","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ea031dbb20b13e0b39a64bc1ac103f71dae2d02d68b11d635a1e3ab3ddd8aa0c · sha256:37e9149884cfe649… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"Copilot Studio Information Disclosure Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21520"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ea031dbb20b13e0b39a64bc1ac103f71dae2d02d68b11d635a1e3ab3ddd8aa0c · sha256:37e9149884cfe649… · /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.