Mastadon streaming server allows OAuth clients without the `read` scope to subscribe to public channels
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mastodon | mastodon | affected |
|
Configuration 1 [-]
|
No data.
| Vendor | Product | Versions |
|---|---|---|
| Joinmastodon | Mastodon | — |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.275% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Joinmastodon
Joinmastodon mastodon |
|
| CPEs | cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Joinmastodon
Joinmastodon mastodon |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mastodon is a free, open-source social network server based on ActivityPub. In Mastodon before 4.4.6, 4.3.14, and 4.2.27, the streaming server accepts serving events for public timelines to clients using any valid authentication token, even if those tokens lack the read:statuses scope. This allows OAuth clients without the read scope to subscribe to public channels and receive public timeline events. The impact is limited, as this only affects new public posts published on the public timelines and requires an otherwise valid token, but this may lead to unexpected access to public posts in a limited-federation setting. This issue has been patched in versions 4.4.6, 4.3.14, and 4.2.27. No known workarounds exist. | |
| Title | Mastadon streaming server allows OAuth clients without the `read` scope to subscribe to public channels | |
| Weaknesses | CWE-280 | |
| References |
| |
| Metrics |
cvssV3_1
|