Nixpkgs security tracker
NIXPKGS-2026-2529
GitHub issue
published 10 hours ago
Pixelfed through 0.12.9 Unauthorized Story Access via API
Permalink
CVE-2026-86178
5.3 MEDIUM
- CVSS version (CVSS): 4.0
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Attack Requirement (AT): None (N)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Vulnerable System Impact Confidentiality (VC): Low (L)
- Vulnerable System Impact Integrity (VI): Low (L)
- Vulnerable System Impact Availability (VA): None (N)
- Subsequent System Impact Confidentiality (SC): None (N)
- Subsequent System Impact Integrity (SI): None (N)
- Subsequent System Impact Availability (SA): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Attack Requirement (MAT): None (N)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Vulnerable System Impact Confidentiality (MVC): Low (L)
- Modified Vulnerable System Impact Integrity (MVI): Low (L)
- Modified Vulnerable System Impact Availability (MVA): None (N)
- Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
- Modified Subsequent System Impact Integrity (MSI): Negligible (N)
- Modified Subsequent System Impact Availability (MSA): Negligible (N)
- Safety (S): Not Defined (X)
- Automatable (AU): Not Defined (X)
- Recovery (R): Not Defined (X)
- Value Density (V): Not Defined (X)
- Vulnerability Response Effort (RE): Not Defined (X)
- Provider Urgency (U): Not Defined (X)
- Confidentiality Req. (CR): Not Defined (X)
- Integrity Req. (IR): Not Defined (X)
- Availability Req. (AR): Not Defined (X)
- Exploit Maturity (E): Not Defined (X)
by @LeSuisse Activity log
- Created suggestion
- @LeSuisse accepted
- @LeSuisse published on GitHub
Pixelfed through 0.12.9 Unauthorized Story Access via API
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.
References
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StoryComposeController react technical-description
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StoryComposeController comment technical-description
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Story react and comment routes technical-description
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VulnCheck Advisory: Pixelfed through 0.12.9 Unauthorized Story Access via API third-party-advisory
Affected products
pixelfed
- =<0.12.9
Package maintainers
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@Prince213 Sizhe Zhao <prc.zhao@outlook.com>
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@phanirithvij Phani Rithvij <phanirithvij2000@gmail.com>
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@ethancedwards8 Ethan Carter Edwards <ethan@ethancedwards.com>
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@eljamm Fedi Jamoussi <fedi.jamoussi@protonmail.ch>