CVE-2026-45373 CodeWhale: SSRF IPV6 bypass
Attackers can bypass SSRF protections in CodeWhale by using IPv6 loopback addresses, potentially accessing internal network resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-45373?
CVE-2026-45373 is a high-severity server-side request forgery vulnerability in Hmbown CodeWhale, published on 28 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
CodeWhale is a DeepSeek + MiMo coding agent in terminal. Prior to 0.8.26, although SSRF is validated against hostnames that resolve to private IPv6 addresses, when providing the IPV6 in URL as http://[::1], the SSRF defenses do not work. This vulnerability is fixed in 0.8.26.
Weakness: CWE-918
Which versions are affected by CVE-2026-45373?
2 open source packages ship an affected version, including deepseek-tui.
| Package | Affected | Fixed in |
|---|---|---|
deepseek-tui crates.io | All versions | 0.8.26 |
deepseek-tui crates.io | All versions | 0.8.26 |
How do I fix CVE-2026-45373?
Upgrade deepseek-tui to 0.8.26 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-45373 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-45373 exists.
Sources
Also known as GHSA-88gh-2526-gfrr.