Dark Reader: Ability to request icon-like bitmap data from certain local web servers
Dark Reader is an accessibility browser extension that makes web pages colors dark. Prior to 4.9.126, a website can cause the browser extension's image inversion pipeline to request an unauthenticated icon-like bitmap from a locally running web server when the resource uses a known public-like HTTPS URL and is detected as requiring inversion. This behavior can cross the website-to-local-network boundary and disclose limited information associated with the requested resource. The darkreader npm package used for website integration is not affected. This issue is fixed in version 4.9.126 for Firefox and version 4.9.128 for other browsers.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-92706
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 8 Nov 2026, 01:22 UTC · Revision 1
Source evidence
Dark Reader: Ability to request icon-like bitmap data from certain local web servers
core-osv · Original sourcePublished 22 Sept 2026, 15:22 UTC
Dark Reader is an accessibility browser extension that makes web pages colors dark. Prior to 4.9.126, a website can cause the browser extension's image inversion pipeline to request an unauthenticated icon-like bitmap from a locally running web server when the resource uses a known public-like HTTPS URL and is detected as requiring inversion. This behavior can cross the website-to-local-network boundary and disclose limited information associated with the requested resource. The darkreader npm package used for website integration is not affected. This issue is fixed in version 4.9.126 for Firefox and version 4.9.128 for other browsers.
osv:CVE-2026-92706
Complete source record
{
"id": "d6bcc12e6d2d5c3f481db375f1dbd1b99926c4ee08a2e8083d095bae4096a9cb",
"url": "https://osv.dev/vulnerability/CVE-2026-92706",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Dark Reader: Ability to request icon-like bitmap data from certain local web servers",
"summary": "Dark Reader is an accessibility browser extension that makes web pages colors dark. Prior to 4.9.126, a website can cause the browser extension's image inversion pipeline to request an unauthenticated icon-like bitmap from a locally running web server when the resource uses a known public-like HTTPS URL and is detected as requiring inversion. This behavior can cross the website-to-local-network boundary and disclose limited information associated with the requested resource. The darkreader npm package used for website integration is not affected. This issue is fixed in version 4.9.126 for Firefox and version 4.9.128 for other browsers.",
"evidence": "osv:CVE-2026-92706",
"products": [],
"severity": "low",
"structured": {
"id": "CVE-2026-92706",
"aliases": [
"CVE-2026-92706",
"GHSA-jh5x-rphw-x532"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/darkreader/darkreader",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "f716361ba93e90b91674a0d519b2c3d3425d7f90"
},
{
"fixed": "62199fd4a9ab3e95b1b0c3caa7cb67bf209d3a2d"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "4.9.128"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "62199fd4a9ab3e95b1b0c3caa7cb67bf209d3a2d"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v4.9.126"
},
{
"range": [
{
"fixed": "f716361ba93e90b91674a0d519b2c3d3425d7f90"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v4.9.128"
}
]
}
}
],
"versions": [
"v4.9.125",
"v4.9.124",
"v4.9.123",
"v4.9.122",
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"v4.9.10",
"v4.9.9",
"v4.9.8",
"v3.5.4",
"v2.3.1",
"v1.3.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92706.json"
}
}
],
"modified": "2026-10-28T02:30:52.433166454Z",
"provider": "osv",
"references": [
"https://github.com/darkreader/darkreader/releases/tag/v4.9.126",
"https://github.com/darkreader/darkreader/releases/tag/v4.9.128",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92706.json",
"https://github.com/darkreader/darkreader/security/advisories/GHSA-jh5x-rphw-x532",
"https://nvd.nist.gov/vuln/detail/CVE-2026-92706"
],
"provider_metadata": {
"cwe_ids": [
"CWE-200",
"CWE-346",
"CWE-668"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92706.json"
}
},
"related_cves": [
{
"value": "CVE-2026-92706",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 521303,
"published_at": "2026-09-22T15:22:07.28+00:00"
}