How severe is CVE-2026-44695?

CVE-2026-44695 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-44695 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44695?

CVE-2026-44695 affects Getoutline Outline. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-44695?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-44695 have an EU (EUVD) identifier?

Yes. CVE-2026-44695 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29343.

When was CVE-2026-44695 published?

CVE-2026-44695 was published on 2026-05-11 and last updated on 2026-06-17.

CVE-2026-44695

CVE-2026-44695 is a medium-severity vulnerability in Getoutline Outline with a CVSS 3.x base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: Medium (CVSS 3.x base score 5.8)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29343
Weakness: CWE-352
Affected product: Getoutline Outline
Published: 2026-05-11
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-44695?: 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.
How severe is CVE-2026-44695?: CVE-2026-44695 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-44695 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44695?: CVE-2026-44695 affects Getoutline Outline. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-44695?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-44695 have an EU (EUVD) identifier?: Yes. CVE-2026-44695 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29343.
When was CVE-2026-44695 published?: CVE-2026-44695 was published on 2026-05-11 and last updated on 2026-06-17.

References

https://github.com/outline/outline/security/advisories/GHSA-mjgw-5j7q-gv8v

Affected products (1)

cpe:2.3:a:getoutline:outline:*:*:*:*:*:*:*:*

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