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High, CVSS 7.4amended

DeepSeek TUI has SSRF via HTTP Redirect Bypass in fetch_url Tool

CVE-2026-45310GHSA-96ff-gc8g-wpvg

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (deepseek-tui 0.8.22; deepseek-tui-cli 0.8.22; deepseek-tui 0.8.22), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
7.4 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
EPSS
  • CVE-2026-45310: 0.28% estimated exploitation activity in the next 30 days; percentile 20.48 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Summary The fetchurl tool validates the initial URL's resolved IP address against a restricted-IP blocklist (isrestrictedip()) to prevent SSRF attacks against internal services (cloud metadata endpoints, localhost, private networks). However, the HTTP client (reqwest) is configured to automatically follow up to 5 redirects (reqwest::redirect::Policy::limited(5)) without re-validating the redirect target against the same SSRF protections. PoC Step 1 — Baseline: Confirm fetchurl blocks direct requests to restricted IPs. Step 2 — SSRF bypass via redirect: Fetch a public URL that redirects to the restricted IP. Expected result: The error message says "connection refused" or "request failed: connect error" — NOT "restricted address." This proves the SSRF filter was bypassed; the connection failed only because 169.254.169.254 is unreachable from a non-cloud machine. Observed result: fetchurl followed the 302 redirect and attempted to connect to 169.254.169.254. The error was a TCP-level…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from ghsa record GHSA-96ff-gc8g-wpvg

  2. Revision 1 · created ·

    Published from osv record GHSA-96ff-gc8g-wpvg

Agent brief

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# Patch Next advisory brief: CVE-2026-45310

Advisory: DeepSeek TUI has SSRF via HTTP Redirect Bypass in fetch_url Tool
IDs: CVE-2026-45310, GHSA-96ff-gc8g-wpvg
Record: https://patchnext.com/advisories/cve-2026-45310 (revision 2, source checked 26 Oct 2026, 12:53 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.4)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: deepseek-tui 0.8.22; deepseek-tui-cli 0.8.22; deepseek-tui 0.8.22. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm deepseek-tui: affected < 0.8.22; fixed in 0.8.22
- crates.io deepseek-tui-cli: affected < 0.8.22; fixed in 0.8.22
- crates.io deepseek-tui: affected < 0.8.22; fixed in 0.8.22

## Suggested inspection (read-only)
- `npm ls deepseek-tui --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.
- crates.io deepseek-tui-cli: check the installed version with your package manager.
- crates.io deepseek-tui: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on deepseek-tui, deepseek-tui-cli.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-96ff-gc8g-wpvg (OSV record GHSA-96ff-gc8g-wpvg lists affected ranges: crates.io deepseek-tui >=0 =0 =0 <0.8.22 (fixed))
- Verified: https://github.com/advisories/GHSA-96ff-gc8g-wpvg (GitHub-reviewed advisory GHSA-96ff-gc8g-wpvg lists affected ranges: crates.io deepseek-tui >=0 =0 =0 <0.8.22)

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