CVE-2026-54461

Habitica: Regex Injection / ReDoS in Member Search

State
Published
Severity
6.5 Medium
Published
Sep 24, 2026
Updated
Sep 28, 2026
Reserved
Jun 15, 2026

Read the record on cve.org

Description

Habitica is a habit tracker application that treats goals like a role-playing game. From 4.172.1 until 5.48.2, a query parameter on Habitica's /api/v3/groups/:groupId/members route is not sanitized before being interpreted as a regular expression. An authenticated caller can supply a computationally expensive regular expression that degrades application performance or halts Node.js processes. This issue is fixed in version 5.48.2.

Scores

CVSSScoreVectorSource
3.16.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HGitHub_M

Weaknesses

  • CWE-1333 Inefficient Regular Expression Complexity

Affected Products

ProductVersions
habiticaHabitRPG
  • >= 4.172.1, < 5.48.2Affected

References

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