Pixelfed through 0.12.9 fails to validate follower status in StoryComposeController react and comment endpoints, allowing authenticated users to access follower-only stories. Attackers can enumerate sequential story IDs and submit reactions or comments to retrieve story media URLs and author information without following the account.

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Solution

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Workaround

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History

Sat, 05 Sep 2026 11:15:00 +0000

Type Values Removed Values Added
Description Pixelfed through 0.12.9 fails to validate follower status in StoryComposeController react and comment endpoints, allowing authenticated users to access follower-only stories. Attackers can enumerate sequential story IDs and submit reactions or comments to retrieve story media URLs and author information without following the account.
Title Pixelfed through 0.12.9 Unauthorized Story Access via API
First Time appeared Pixelfed
Pixelfed pixelfed
Weaknesses CWE-862
CPEs cpe:2.3:a:pixelfed:pixelfed:*:*:*:*:*:*:*:*
Vendors & Products Pixelfed
Pixelfed pixelfed
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': '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'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-05T11:01:28.748Z

Reserved: 2026-09-05T10:40:41.710Z

Link: CVE-2026-86178

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-05T11:16:46.537

Modified: 2026-09-05T11:16:46.537

Link: CVE-2026-86178

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-05T14:30:06Z

Weaknesses