CVE-2026-44695 (GCVE-0-2026-44695)
Vulnerability from cvelistv5
Published
2026-05-11 21:11
Modified
2026-05-12 13:30
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Summary
Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a logged-in Outline user complete the callback and link that user's Outline account to the attacker's Slack team_id and user_id. The linked Slack identity can then use the Slack /outline search command as the victim Outline user. This vulnerability is fixed in 1.7.1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
{
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"id": "CVE-2026-44695",
"options": [
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{
"Automatable": "no"
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{
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"role": "CISA Coordinator",
"timestamp": "2026-05-12T13:30:41.528321Z",
"version": "2.0.3"
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"providerMetadata": {
"dateUpdated": "2026-05-12T13:30:44.950Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"tags": [
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"url": "https://github.com/outline/outline/security/advisories/GHSA-mjgw-5j7q-gv8v"
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"title": "CISA ADP Vulnrichment"
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"cna": {
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"vendor": "outline",
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"value": "Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a logged-in Outline user complete the callback and link that user\u0027s Outline account to the attacker\u0027s Slack team_id and user_id. The linked Slack identity can then use the Slack /outline search command as the victim Outline user. This vulnerability is fixed in 1.7.1."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N",
"version": "3.1"
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"problemTypes": [
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"descriptions": [
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"references": [
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"source": {
"advisory": "GHSA-mjgw-5j7q-gv8v",
"discovery": "UNKNOWN"
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"title": "Outline: Slack OAuth state can link a victim Outline account to an attacker Slack identity"
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"datePublished": "2026-05-11T21:11:25.679Z",
"dateReserved": "2026-05-07T17:07:09.316Z",
"dateUpdated": "2026-05-12T13:30:44.950Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
"dataVersion": "5.2"
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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