MEDIUMVulnerability

CVE-2026-86178

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.

Properties

severity
MEDIUM
score
5.4
cve_id
CVE-2026-86178
signal_observed_at
2026-09-23T22:44:45+00:00
vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
published_at
2026-09-05T11:16:46.537
last_modified
2026-09-23T17:17:45.200

Related Entities (2)

HAS_WEAKNESS (1)

[Weakness]Missing Authorization

DESCRIBED_BY (1)

[Source]NVD

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CVE-2026-86178 — Ninja Signal Threat Intelligence | Ninja Signal