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CVE-2025-30160: Redlib allows a Denial of Service via DEFLATE Decompression Bomb in restore_preferences Form

8.7 CVSS

Description

Redlib is an alternative private front-end to Reddit. A vulnerability has been identified in Redlib where an attacker can cause a denial-of-service (DOS) condition by submitting a specially crafted base2048-encoded DEFLATE decompression bomb to the restore_preferences form. This leads to excessive memory consumption and potential system instability, which can be exploited to disrupt Redlib instances. This vulnerability is fixed in 0.36.0.

Classification

CVE ID: CVE-2025-30160

CVSS Base Severity: HIGH

CVSS Base Score: 8.7

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem Types

CWE-400: Uncontrolled Resource Consumption CWE-502: Deserialization of Untrusted Data

Affected Products

Vendor: redlib-org

Product: redlib

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.06% (probability of being exploited)

EPSS Percentile: 20.19% (scored less or equal to compared to others)

EPSS Date: 2025-04-18 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-30160
https://github.com/redlib-org/redlib/security/advisories/GHSA-g8vq-v3mg-7mrg
https://github.com/redlib-org/redlib/commit/15147cea8e42f6569a11603d661d71122f6a02dc
https://github.com/redlib-org/redlib/commit/2e95e1fc6e2064ccfae87964b4860bda55eddb9a

Timeline