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

Quick assessment

Affected
redlib-org redlib
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Redlib是Redlib开源的一个 Reddit 的私有前端。 Redlib 0.36.0之前版本存在代码问题漏洞，该漏洞源于攻击者可通过提交特制的base2048编码的DEFLATE解压缩炸弹导致拒绝服务，从而消耗大量内存并可能导致系统不稳定。

AI Predicted 7.5 Difficulty: Easy EPSS 0.56% · P45

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2025-30160

Vulnerability Information
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Vulnerability Title
Redlib allows a Denial of Service via DEFLATE Decompression Bomb in restore_preferences Form
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Redlib 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Redlib是Redlib开源的一个 Reddit 的私有前端。 Redlib 0.36.0之前版本存在代码问题漏洞，该漏洞源于攻击者可通过提交特制的base2048编码的DEFLATE解压缩炸弹导致拒绝服务，从而消耗大量内存并可能导致系统不稳定。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
redlib-org redlib < 0.36.0 -

II. Public POCs for CVE-2025-30160

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III. Intelligence Information for CVE-2025-30160

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Patches & Fixes for CVE-2025-30160 (2)

Vendor Advisories for CVE-2025-30160 (1)

IV. Related Vulnerabilities

Same weakness: CWE-400

V. Comments for CVE-2025-30160

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