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GHSA-8j2w-6fmm-m587

MediumCVSS 4.8 / 10
Published Mar 12, 2026·Last modified Mar 25, 2026
Affected Components(0)

No affected components available

Description

Summary

Gateway auth for plugin channel endpoints can be bypassed when path canonicalization differs between the gateway guard and plugin handler routing.

Details

On affected versions, server-http only applies gateway auth when raw requestPath matches exactly:

  • /api/channels
  • /api/channels/*

If a plugin handler canonicalizes path input (for example decodeURIComponent(pathname).toLowerCase()), requests like:

  • /API/channels/nostr/default/profile
  • /api/channels%2Fnostr%2Fdefault%2Fprofile can be interpreted as /api/channels/* by the plugin, while the gateway auth guard is skipped.

Impact

Authentication boundary bypass for plugin channel HTTP routes under canonicalization mismatch conditions. Unauthorized callers may access plugin channel APIs that are expected to require gateway auth.

CWE: CWE-288 (Authentication Bypass Using an Alternate Path or Channel) CVSS: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N (Base 5.3, Moderate)

Risk Scores
Base Score
4.8

The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.

Threat Intelligence
4.4

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.19%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Medium severity
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