Medium
Discourse may allow exposure of hidden tags in the subject of notification emails
Type: advisorySources: OSV
Discourse is an open-source discussion platform. Prior to version 2.8.13 of the `stable` branch and version 2.9.0.beta14 of the `beta` and `tests-passed` branches, unauthorized users may learn of the existence of hidden tags and that they have been applied to topics that they have access to. This issue is patched in version 2.8.13 of the `stable` branch and version 2.9.0.beta14 of the `beta` and `tests-passed` branches. As a workaround, use the `disable_email` site setting to disable all emails to non-staff users.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2022-46150
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 23:22 UTC · Revision 1
Source evidence
Discourse may allow exposure of hidden tags in the subject of notification emails
core-osv · Original sourcePublished 29 Nov 2022, 00:00 UTC
Discourse is an open-source discussion platform. Prior to version 2.8.13 of the `stable` branch and version 2.9.0.beta14 of the `beta` and `tests-passed` branches, unauthorized users may learn of the existence of hidden tags and that they have been applied to topics that they have access to. This issue is patched in version 2.8.13 of the `stable` branch and version 2.9.0.beta14 of the `beta` and `tests-passed` branches. As a workaround, use the `disable_email` site setting to disable all emails to non-staff users.
osv:CVE-2022-46150
Complete source record
{
"id": "cd315d513bdd58553e7f592e398901fbb4868214f7a251ca3c90d4713a3a2b21",
"url": "https://osv.dev/vulnerability/CVE-2022-46150",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Discourse may allow exposure of hidden tags in the subject of notification emails",
"summary": "Discourse is an open-source discussion platform. Prior to version 2.8.13 of the `stable` branch and version 2.9.0.beta14 of the `beta` and `tests-passed` branches, unauthorized users may learn of the existence of hidden tags and that they have been applied to topics that they have access to. This issue is patched in version 2.8.13 of the `stable` branch and version 2.9.0.beta14 of the `beta` and `tests-passed` branches. As a workaround, use the `disable_email` site setting to disable all emails to non-staff users.",
"evidence": "osv:CVE-2022-46150",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2022-46150",
"aliases": [
"BIT-discourse-2022-46150",
"CVE-2022-46150",
"GHSA-rqvq-94h8-p5wv"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
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{
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"type": "GIT",
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{
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{
"range": [
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"source": "REFERENCES_COMMIT"
}
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}
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],
"modified": "2026-10-28T02:30:40.549715287Z",
"provider": "osv",
"references": [
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"source_id": "core-osv",
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"published_at": "2022-11-29T00:00:00+00:00"
}