CVE-2026-72915
NVD: Mastodon is a free, open-source social network server based on ActivityPub. NVD: From 4.6.0-beta.1 until 4.6.4 and 4.7.0-beta.1, any logged-in local user could use the show action in app/controllers/admin/collections_controller.rb to access personally identifying information about another local user in a collection because the controller... NVD: The exposed data included the other user's current email address and last-used IP address.
7.5 Severity
HIGH EPSS
0.0028 (20) KEV
-
Source-published summary
NVD: Mastodon is a free, open-source social network server based on ActivityPub. NVD: From 4.6.0-beta.1 until 4.6.4 and 4.7.0-beta.1, any logged-in local user could use the show action in app/controllers/admin/collections_controller.rb to access personally identifying information about another local user in a collection because the controller... NVD: The exposed data included the other user's current email address and last-used IP address.
Possible impact
Source describes information exposure review · local exposure. Possible impact: A local user may be able to access information that should not be exposed.
Affected context
Affected product or version requires source confirmation.
Remediation / advisory
Patch confirmed by source text; fixed version context: versions.
Why it matters
Source describes information exposure review · local exposure. Possible impact: A local user may be able to access information that should not be exposed.; CVSS 7.5 (HIGH); EPSS percentile 20; not listed in KEV; Patch confirmed by source text; fixed version context: versions; sources: NVD, OSV.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
local exposure
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD / OSV description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.