High
FreeScout vulnerable to SSRF via Helper::sanitizeRemoteUrl: redirect destination not re-validated, allowing internal HTTP / cloud-metadata access
Type: advisorySources: OSV
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, Helper::sanitizeRemoteUrl() in app/Misc/Helper.php follows HTTP redirects via curlGetLastRedirectedUrl() but then re-validates the original URL instead of the final redirect destination. An attacker who can supply any URL that passes the initial host check can redirect FreeScout to internal HTTP services (cloud metadata, internal APIs, RFC1918 ranges) that would normally be blocked. This issue has been patched in version 1.8.217.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-41905
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 04:00 UTC · Revision 1
Source evidence
FreeScout vulnerable to SSRF via Helper::sanitizeRemoteUrl: redirect destination not re-validated, allowing internal HTTP / cloud-metadata access
core-osv · Original sourcePublished 7 May 2026, 18:08 UTC
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, Helper::sanitizeRemoteUrl() in app/Misc/Helper.php follows HTTP redirects via curlGetLastRedirectedUrl() but then re-validates the original URL instead of the final redirect destination. An attacker who can supply any URL that passes the initial host check can redirect FreeScout to internal HTTP services (cloud metadata, internal APIs, RFC1918 ranges) that would normally be blocked. This issue has been patched in version 1.8.217.
osv:CVE-2026-41905
Complete source record
{
"id": "0b4a878149350566cdca45fbbbe27684e8786819a221613ebc276ba03995a0b8",
"url": "https://osv.dev/vulnerability/CVE-2026-41905",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "FreeScout vulnerable to SSRF via Helper::sanitizeRemoteUrl: redirect destination not re-validated, allowing internal HTTP / cloud-metadata access",
"summary": "FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, Helper::sanitizeRemoteUrl() in app/Misc/Helper.php follows HTTP redirects via curlGetLastRedirectedUrl() but then re-validates the original URL instead of the final redirect destination. An attacker who can supply any URL that passes the initial host check can redirect FreeScout to internal HTTP services (cloud metadata, internal APIs, RFC1918 ranges) that would normally be blocked. This issue has been patched in version 1.8.217.",
"evidence": "osv:CVE-2026-41905",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-41905",
"aliases": [
"CVE-2026-41905",
"GHSA-22wf-848c-c856"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"
}
],
"affected": [
{
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{
"repo": "https://github.com/freescout-help-desk/freescout",
"type": "GIT",
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{
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"source": "REFERENCES_TAG",
"original_tag": "1.8.217"
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],
"modified": "2026-10-28T02:30:49.418070581Z",
"provider": "osv",
"references": [
"https://github.com/freescout-help-desk/freescout/releases/tag/1.8.217",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41905.json",
"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-22wf-848c-c856",
"https://nvd.nist.gov/vuln/detail/CVE-2026-41905"
],
"provider_metadata": {
"cwe_ids": [
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],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41905.json"
}
},
"related_cves": [
{
"value": "CVE-2026-41905",
"evidence": "/id"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 517957,
"published_at": "2026-05-07T18:08:09.277+00:00"
}