Quest Bot is an opensource Discord Bot. Prior to 1.1.9, the `image to GIF` command uses a request helper that validates a hostname's public IP addresses but then sends the actual request by hostname, causing a `second DNS lookup`. An attacker controlling a domain can return a public address during validation and an internal address during the connection, bypassing the internal-address protection through `DNS rebinding`. The command takes its address directly from user input and its developer-only gate is disabled in normal deployments, so any member of a server with the bot can trigger the flaw without special permissions. Requests are restricted to `HTTPS on port 443`, and content is returned only when the response is a `genuine image`. The impact is therefore mostly blind internal probing with limited retrieval of image responses from loopback or internal endpoints, not arbitrary internal-data disclosure. Common cloud metadata services using plain HTTP on another port are not reachable through this path. This issue is fixed in version 1.1.9.
PUBLISHED5.2CWE-918
Quest Bot: Server Side Request Forgery in the Image to GIF Feature Lets Any Server Member Reach Internal Services
Problem type
Affected products
vantern-org
questbot
< 1.1.9 - AFFECTED
References
https://github.com/vantern-org/questbot/security/advisories/GHSA-hrp5-g9r6-8rq4
https://github.com/vantern-org/questbot/security/advisories/GHSA-hrp5-g9r6-8rq4
https://github.com/vantern-org/questbot/commit/eec5f57eda8caa37cd46520c57b3c01efef2b99b
https://github.com/vantern-org/questbot/commit/eec5f57eda8caa37cd46520c57b3c01efef2b99b
JSON source
https://cveawg.mitre.org/api/cve/CVE-2026-61840Click to expand
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"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-61840",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"dateUpdated": "2026-10-30T18:23:22.213Z",
"dateReserved": "2026-07-10T20:28:17.512Z",
"datePublished": "2026-10-30T18:23:22.213Z",
"state": "PUBLISHED"
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"containers": {
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"dateUpdated": "2026-10-30T18:23:22.213Z"
},
"title": "Quest Bot: Server Side Request Forgery in the Image to GIF Feature Lets Any Server Member Reach Internal Services",
"descriptions": [
{
"lang": "en",
"value": "Quest Bot is an opensource Discord Bot. Prior to 1.1.9, the `image to GIF` command uses a request helper that validates a hostname's public IP addresses but then sends the actual request by hostname, causing a `second DNS lookup`. An attacker controlling a domain can return a public address during validation and an internal address during the connection, bypassing the internal-address protection through `DNS rebinding`. The command takes its address directly from user input and its developer-only gate is disabled in normal deployments, so any member of a server with the bot can trigger the flaw without special permissions. Requests are restricted to `HTTPS on port 443`, and content is returned only when the response is a `genuine image`. The impact is therefore mostly blind internal probing with limited retrieval of image responses from loopback or internal endpoints, not arbitrary internal-data disclosure. Common cloud metadata services using plain HTTP on another port are not reachable through this path. This issue is fixed in version 1.1.9."
}
],
"affected": [
{
"vendor": "vantern-org",
"product": "questbot",
"versions": [
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"version": "< 1.1.9",
"status": "affected"
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"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "CWE-918: Server-Side Request Forgery (SSRF)",
"cweId": "CWE-918",
"type": "CWE"
}
]
}
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"references": [
{
"url": "https://github.com/vantern-org/questbot/security/advisories/GHSA-hrp5-g9r6-8rq4",
"name": "https://github.com/vantern-org/questbot/security/advisories/GHSA-hrp5-g9r6-8rq4",
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"url": "https://github.com/vantern-org/questbot/commit/eec5f57eda8caa37cd46520c57b3c01efef2b99b",
"name": "https://github.com/vantern-org/questbot/commit/eec5f57eda8caa37cd46520c57b3c01efef2b99b",
"tags": [
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"metrics": [
{}
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}
}
}