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CVE-2026-8696— radare2 6.1.5 Use-After-Free via gdbr_pids_list()

Quick assessment

Affected
radare2 radare2
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Radare2是Radare开源的一个面向 Unix 极客的 Libre 反向框架。 Radare2 6.1.5版本存在资源管理错误漏洞，该漏洞源于GDB客户端核心中的gdbr_pids_list()函数存在释放后重用，可能导致远程攻击者通过发送格式错误的线程信息响应造成拒绝服务或潜在执行任意代码，攻击者可通过在qfThreadInfo成功分配RDebugPid结构后导致qsThreadInfo失败触发漏洞，导致错误路径尝试清理列表时发生双重释放内存损坏。

CVSS 7.5 · High EPSS 1.03% · P62

Affected Version Matrix 2

VendorProduct Version RangeStatus
radare2 radare2 6.1.5 affected
c213ad6894a1eb9086ac8bf5fae35757e9e1683c unaffected
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I. Basic Information for CVE-2026-8696

Vulnerability Information
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Vulnerability Title
radare2 6.1.5 Use-After-Free via gdbr_pids_list()
Source: CVE Program / CVE List V5
Vulnerability Description
radare2 6.1.5 contains a use-after-free vulnerability in the gdbr_pids_list() function within the GDB client core that allows remote attackers to cause a denial of service or potentially execute arbitrary code by sending malformed thread information responses. Attackers can trigger the vulnerability by causing qsThreadInfo to fail after qfThreadInfo successfully allocates RDebugPid structures, resulting in double-free memory corruption when the error path attempts to clean up the list.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Radare2 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Radare2是Radare开源的一个面向 Unix 极客的 Libre 反向框架。 Radare2 6.1.5版本存在资源管理错误漏洞，该漏洞源于GDB客户端核心中的gdbr_pids_list()函数存在释放后重用，可能导致远程攻击者通过发送格式错误的线程信息响应造成拒绝服务或潜在执行任意代码，攻击者可通过在qfThreadInfo成功分配RDebugPid结构后导致qsThreadInfo失败触发漏洞，导致错误路径尝试清理列表时发生双重释放内存损坏。
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
radare2 radare2 6.1.5 -

II. Public POCs for CVE-2026-8696

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8738 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-8696

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Patches & Fixes for CVE-2026-8696 (1)

Vendor Advisories for CVE-2026-8696 (1)

News Coverage for CVE-2026-8696 (1)

IV. Related Vulnerabilities

Same product: radare2
Same vendor: radare2
Same weakness: CWE-416

V. Comments for CVE-2026-8696

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