CVE-2026-108730: Auth Bypass (CVSS 4.3)

Description

Raven 2.0.0 through 3.0.0 contains a missing authorization vulnerability in legacy methods in raven/api/raven_message.py that skip the workspace membership check. Authenticated non-members can call get_messages_with_dates or get_all_files_shared_in_channel with predictable channel IDs to read Public channel history and Open/Public channel file metadata across workspaces.

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploit Prediction

0.0025

Probability of exploitation

0.15%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other References

https://github.com/The-Commit-Company/raven https://github.com/The-Commit-Company/raven/blob/a732e10f9c8b2ab3446038396e3eea763da617e7/raven/api/raven_message.py#L580-L595 https://github.com/The-Commit-Company/raven/blob/a732e10f9c8b2ab3446038396e3eea763da617e7/raven/permissions.py#L165-L170 https://hackmd.io/@haind/frappe-raven-legacy-endpoints-workspace-isolation-bypass https://www.vulncheck.com/advisories/raven-2.0.0-through-3.0.0-missing-authorization-via-legacy-message-and-file-apis https://hackmd.io/@haind/frappe-raven-legacy-endpoints-workspace-isolation-bypass

Frequently Asked Questions

What is CVE-2026-108730? +

Raven 2.0.0 through 3.0.0 contains a missing authorization vulnerability in legacy methods in raven/api/raven_message.py that skip the workspace membership check. Authenticated non-members can call get_messages_with_dates or get_all_files_shared_in_channel with predictable channel IDs to read Public channel history and Open/Public channel file metadata across workspaces. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-108730? +

CVE-2026-108730 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0025, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-108730? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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