[PR #24493] [MERGED] fix: gate public sharing of calendars behind sharing.public_calendars permission #131347

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GiteaMirror · 2026-05-21T16:43:56-05:00

GiteaMirror commented

2026-05-21 16:43:56 -05:00

📋 Pull Request Information

Original PR: https://github.com/open-webui/open-webui/pull/24493
Author: @Classic298
Created: 5/9/2026
Status: ✅ Merged
Merged: 5/9/2026
Merged by: @tjbck

Base: dev ← Head: fix/calendar-missing-public-sharing-permission-gate

📝 Commits (2)

da8ed31 fix: gate public sharing of calendars behind sharing.public_calendars permission
d20e56a fix: expose public_calendars + features.calendar through admin permissions surface

📊 Changes

5 files changed (+55 additions, -3 deletions)

View changed files

📝 backend/open_webui/config.py (+5 -0)
📝 backend/open_webui/routers/calendar.py (+26 -1)
📝 backend/open_webui/routers/users.py (+2 -0)
📝 src/lib/components/admin/Users/Groups/Permissions.svelte (+18 -0)
📝 src/lib/constants/permissions.ts (+4 -2)

📄 Description

… permission

The calendar router did not call filter_allowed_access_grants on either the create or update endpoint, while every other shareable resource in the codebase (channels, knowledge, models, notes, prompts, skills, tools) does. A verified non-admin owner could therefore attach
{"principal_type":"user","principal_id":"*","permission":"read"|"write"} to their own calendar in the create or update payload and have it persisted unfiltered. Any other verified user with the (default-on) features.calendar permission could then read or, for write grants, write events on it via the existing /events* endpoints, bypassing the per-user sharing.public_ permission gate the rest of the resource cohort enforces.

Three changes:

config.py: add USER_PERMISSIONS_CALENDAR_ALLOW_PUBLIC_SHARING (default False, env-overridable) and surface it in DEFAULT_USER_PERMISSIONS ['sharing']['public_calendars'] so admins can grant it per group via the same UI used for notes/models/etc.
routers/calendar.py: import filter_allowed_access_grants and call it in create_calendar with the new sharing.public_calendars key, identical to the channel router's pattern.
routers/calendar.py: call filter_allowed_access_grants in update_calendar too. The pre-existing owner-only gate at L350 only restricts WHO may change grants; the new filter restricts WHICH grants they may set, so a non-admin owner cannot make their own calendar publicly readable or writable without the corresponding sharing permission.

Contributor License Agreement

By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.

Note

Deleting the CLA section will lead to immediate closure of your PR and it will not be merged in.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/open-webui/open-webui/pull/24493 **Author:** [@Classic298](https://github.com/Classic298) **Created:** 5/9/2026 **Status:** ✅ Merged **Merged:** 5/9/2026 **Merged by:** [@tjbck](https://github.com/tjbck) **Base:** `dev` ← **Head:** `fix/calendar-missing-public-sharing-permission-gate` --- ### 📝 Commits (2) - [`da8ed31`](https://github.com/open-webui/open-webui/commit/da8ed3117a6c558147da6cbe4adbc5facf6f18eb) fix: gate public sharing of calendars behind sharing.public_calendars permission - [`d20e56a`](https://github.com/open-webui/open-webui/commit/d20e56a2959733f4df06602d6612b2c46b4a0523) fix: expose public_calendars + features.calendar through admin permissions surface ### 📊 Changes **5 files changed** (+55 additions, -3 deletions) <details> <summary>View changed files</summary> 📝 `backend/open_webui/config.py` (+5 -0) 📝 `backend/open_webui/routers/calendar.py` (+26 -1) 📝 `backend/open_webui/routers/users.py` (+2 -0) 📝 `src/lib/components/admin/Users/Groups/Permissions.svelte` (+18 -0) 📝 `src/lib/constants/permissions.ts` (+4 -2) </details> ### 📄 Description … permission The calendar router did not call filter_allowed_access_grants on either the create or update endpoint, while every other shareable resource in the codebase (channels, knowledge, models, notes, prompts, skills, tools) does. A verified non-admin owner could therefore attach `{"principal_type":"user","principal_id":"*","permission":"read"|"write"}` to their own calendar in the create or update payload and have it persisted unfiltered. Any other verified user with the (default-on) features.calendar permission could then read or, for write grants, write events on it via the existing /events* endpoints, bypassing the per-user sharing.public_<X> permission gate the rest of the resource cohort enforces. Three changes: - config.py: add USER_PERMISSIONS_CALENDAR_ALLOW_PUBLIC_SHARING (default False, env-overridable) and surface it in DEFAULT_USER_PERMISSIONS ['sharing']['public_calendars'] so admins can grant it per group via the same UI used for notes/models/etc. - routers/calendar.py: import filter_allowed_access_grants and call it in create_calendar with the new sharing.public_calendars key, identical to the channel router's pattern. - routers/calendar.py: call filter_allowed_access_grants in update_calendar too. The pre-existing owner-only gate at L350 only restricts WHO may change grants; the new filter restricts WHICH grants they may set, so a non-admin owner cannot make their own calendar publicly readable or writable without the corresponding sharing permission. ### Contributor License Agreement  - [x] By submitting this pull request, I confirm that I have read and fully agree to the [Contributor License Agreement (CLA)](https://github.com/open-webui/open-webui/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT), and I am providing my contributions under its terms. > [!NOTE] > Deleting the CLA section will lead to immediate closure of your PR and it will not be merged in. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

GiteaMirror added the pull-request label 2026-05-21 16:43:57 -05:00

GiteaMirror closed this issue

2026-05-21 16:44:16 -05:00

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Reference: github-starred/open-webui#131347