CVE-2026-86178
Medium
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.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Pixelfed
PublishedSep 5, 2026
First seenSep 5, 2026
Weakness typeCWE-862Missing authorization
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pixelfed pixelfed | v ≤ 0.12.9 | — |
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