FKIE_CVE-2024-37903
Vulnerability from fkie_nvd - Published: 2024-07-05 18:15 - Updated: 2026-06-17 07:39
Severity
Summary
Mastodon is a self-hosted, federated microblogging platform. Starting in version 2.6.0 and prior to versions 4.1.18 and 4.2.10, by crafting specific activities, an attacker can extend the audience of a post they do not own to other Mastodon users on a target server, thus gaining access to the contents of a post not intended for them. Versions 4.1.18 and 4.2.10 contain a patch for this issue.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| joinmastodon | mastodon | * | |
| joinmastodon | mastodon | * |
{
"affected": [
{
"affectedData": [
{
"product": "mastodon",
"vendor": "mastodon",
"versions": [
{
"status": "affected",
"version": "\u003e= 2.6.0, \u003c 4.1.18"
},
{
"status": "affected",
"version": "\u003e= 4.2.0, \u003c 4.2.10"
}
]
}
],
"source": "security-advisories@github.com"
},
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:joinmastodon:mastodon:2.6.0:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "mastodon",
"vendor": "joinmastodon",
"versions": [
{
"lessThan": "4.1.18",
"status": "affected",
"version": "2.6.0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:a:joinmastodon:mastodon:4.2.0:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "mastodon",
"vendor": "joinmastodon",
"versions": [
{
"lessThan": "4.2.10",
"status": "affected",
"version": "4.2.0",
"versionType": "custom"
}
]
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
"matchCriteriaId": "789AD464-8653-4C01-B623-144CC9968130",
"versionEndExcluding": "4.1.18",
"versionStartIncluding": "2.6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
"matchCriteriaId": "17D6FFBE-0FB9-4AFB-B93A-F8B063B52A1A",
"versionEndExcluding": "4.2.10",
"versionStartIncluding": "4.2.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Mastodon is a self-hosted, federated microblogging platform. Starting in version 2.6.0 and prior to versions 4.1.18 and 4.2.10, by crafting specific activities, an attacker can extend the audience of a post they do not own to other Mastodon users on a target server, thus gaining access to the contents of a post not intended for them. Versions 4.1.18 and 4.2.10 contain a patch for this issue."
},
{
"lang": "es",
"value": " Mastodon es una plataforma de microblogging federada y autohospedada. A partir de la versi\u00f3n 2.6.0 y antes de las versiones 4.1.18 y 4.2.10, al crear actividades espec\u00edficas, un atacante puede ampliar la audiencia de una publicaci\u00f3n que no es de su propiedad a otros usuarios de Mastodon en un servidor de destino, obteniendo as\u00ed acceso al contenido de una publicaci\u00f3n no destinada a ellos. Las versiones 4.1.18 y 4.2.10 contienen un parche para este problema."
}
],
"id": "CVE-2024-37903",
"lastModified": "2026-06-17T07:39:01.237",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 4.2,
"source": "security-advisories@github.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-37903",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-07-31T19:04:59.386414Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-07-05T18:15:32.093",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6"
},
{
"source": "security-advisories@github.com",
"tags": [
"Release Notes"
],
"url": "https://github.com/mastodon/mastodon/releases/tag/v4.1.18"
},
{
"source": "security-advisories@github.com",
"tags": [
"Release Notes"
],
"url": "https://github.com/mastodon/mastodon/releases/tag/v4.2.10"
},
{
"source": "security-advisories@github.com",
"tags": [
"Vendor Advisory"
],
"url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-xjvf-fm67-4qc3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Release Notes"
],
"url": "https://github.com/mastodon/mastodon/releases/tag/v4.1.18"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Release Notes"
],
"url": "https://github.com/mastodon/mastodon/releases/tag/v4.2.10"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-xjvf-fm67-4qc3"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-862"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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