CVE Explorer

CVE-2026-47777

Mastodon is a free, open-source social network server based on ActivityPub. In versions there is a missing condition in the check if remote accounts consented to be featured in a remote Collection could lead to attackers bypassing the check and faking consent. An attacker could forge the FeatureAuthorization object that is used to verify consent to be featured in a Collection and thus make it appear as if an account is allowed to be in a Collection when it actually is not. While the FeatureAutho

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7f85e94dec84d176241288c1f864c82c843859188a35fbcdfe0c8957533e622d

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:bec3021a47be67465cb857ba5b3dc6da6c584d7af53b411b12a66829cddc6fd8 · sha256:685d06ffc5b8296c… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:bec3021a47be67465cb857ba5b3dc6da6c584d7af53b411b12a66829cddc6fd8 · sha256:685d06ffc5b8296c… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"product":"mastodon","vendor":"mastodon","versions":[{"status":"affected","version":">= nightly.2026-03-10, < 4.6.0-beta.1"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:bec3021a47be67465cb857ba5b3dc6da6c584d7af53b411b12a66829cddc6fd8 · sha256:685d06ffc5b8296c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:bec3021a47be67465cb857ba5b3dc6da6c584d7af53b411b12a66829cddc6fd8 · sha256:685d06ffc5b8296c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:bec3021a47be67465cb857ba5b3dc6da6c584d7af53b411b12a66829cddc6fd8 · sha256:685d06ffc5b8296c… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:bec3021a47be67465cb857ba5b3dc6da6c584d7af53b411b12a66829cddc6fd8 · sha256:685d06ffc5b8296c… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/mastodon/mastodon/commit/22203f8aeb03e8f14dc62e253e83db39825a5bcf","tags":["x_refsource_MISC"],"url":"https://github.com/mastodon/mastodon/commit/22203f8aeb03e8f14dc62e253e83db39825a5bcf"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:bec3021a47be67465cb857ba5b3dc6da6c584d7af53b411b12a66829cddc6fd8 · sha256:685d06ffc5b8296c… · /containers/cna/references/1

{"name":"https://github.com/mastodon/mastodon/security/advisories/GHSA-vg36-gxjg-2v46","tags":["x_refsource_CONFIRM"],"url":"https://github.com/mastodon/mastodon/security/advisories/GHSA-vg36-gxjg-2v46"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:bec3021a47be67465cb857ba5b3dc6da6c584d7af53b411b12a66829cddc6fd8 · sha256:685d06ffc5b8296c… · /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.

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