CVE-2026-101131 deepseek-ai deepseek-harness dsh index.ts reliance on untrusted inputs in a security decision
Local attackers can bypass security decisions by manipulating the E2B_API_KEY argument in the deepseek-harness library.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-101131?
CVE-2026-101131 is a medium-severity vulnerability in deepseek-ai deepseek-harness, published on 28 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was identified in deepseek-ai deepseek-harness up to 0.1.5-rc.3. Impacted is an unknown function of the file packages/e2b/e2b/src/index.ts of the component dsh. The manipulation of the argument E2B_API_KEY leads to reliance on untrusted inputs in a security decision. Local access is required to approach this attack. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-101131?
How do I fix CVE-2026-101131?
No fix has been published for CVE-2026-101131 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-101131 being exploited?
There is no known exploitation of CVE-2026-101131 in the wild and no public exploit code.
Sources
Also known as GHSA-vcc3-4jvw-qx89.