CVE-2026-88968

LOWCVSS 7.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Claude Code is an agentic coding tool. Prior to 2.1.251, the Edit tool validates a target using pathname and symlink resolution that is not bound to the underlying directory inode or file descriptor. On macOS, attacker-controlled code running in the Bash sandbox can atomically replace an in-workspace parent directory with a symlink after validation, causing the unsandboxed Edit implementation to overwrite a user-writable file outside the workspace. Exploitation requires attacker-controlled code to run inside the sandbox, such as from a malicious repository or dependency script. This issue is fixed in version 2.1.251.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-59CWE-367

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-11-04: 111-04
Full discourse1 post
  • robert.qiu@qwjcool

    Claude Code 新漏洞(CVE-2026-88968)会导致恶意脚本或代码访问到工作区以外的文件,建议尽快升级到2.1.251及以后的新版本 这个漏洞为什么危险?打个比方 你正让 agent 在一个陌生仓库里干活 仓库里藏了恶意脚本 脚本利用漏洞把仓库里的文件指向工作区以外的文件,比如 ~/.ssh、.env 等存放密钥的重要区域。 脚本后续的代码就能正大光明的修改或者读取这些文件内容。 为了保证Agent的使用安全,要保持一个好的使用习惯 1.平时经常关注升级提示尽快升级 2.不要随意相信第三方的代码仓库 3.跑全自动任务的机器上最好没有重要的东西

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