CVE-2026-86112
- Source
- https://cve.org/CVERecord?id=CVE-2026-86112
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86112.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-86112
- Published
- 2026-09-05T09:59:04.004Z
- Modified
- 2026-09-07T03:45:29.927348049Z
- Severity
-
- 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- BookWyrm through 0.9.1 Missing Authorization on the Favorite and Unfavorite Endpoints
- Details
-
BookWyrm through 0.9.1 fails to validate user visibility permissions in the Favorite and Unfavorite views, allowing authenticated attackers to favorite or unfavorite followers-only and direct statuses they cannot access. Attackers can POST to the favorite endpoint with a status ID to create unauthorized interactions, trigger ActivityPub broadcasts, and enumerate private status IDs through response differentiation.
- Database specific
{ "cwe_ids": [ "CWE-639" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86112.json", "cna_assigner": "VulnCheck" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86112.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-86112
- https://www.vulncheck.com/advisories/bookwyrm-through-0.9.1-missing-authorization-on-the-favorite-and-unfavorite-endpoints
- https://github.com/bookwyrm-social/bookwyrm
- https://github.com/bookwyrm-social/bookwyrm/blob/v0.9.1/bookwyrm/views/interaction.py
- https://github.com/geo-chen/oss/blob/main/bookwyrm.md#finding-2-authenticated-idor-in-favoriteunfavorite-allows-interaction-with-private-statuses
Affected packages
Git / github.com/bookwyrm-social/bookwyrm
Affected ranges
- Type
- GIT
- Repo
- https://github.com/bookwyrm-social/bookwyrm
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "source": [ "AFFECTED_FIELD", "DESCRIPTION" ], "extracted_events": [ { "introduced": "0" }, { "last_affected": "0.9.1" }, { "fixed": "0.9.1" } ] }