Vulnerability in deepseek-tui (CVE-2026-75913)
Summary
Vulnerability in deepseek-tui (CVE-2026-75913). Data can be tampered with by attackers. Exploitable via git_show. Mitigation: upgrade to 0.8.41 or later.
Original description
The description as published by the source.
Maintainer resolution
The CodeWhale maintainers validated this report. The affected package ranges are recorded in the advisory metadata. Version 0.8.64 contains the fix in commit 9a34b5034d29f05d1f28fa61b04719ca6a741020. Users should upgrade to 0.8.64 or later. The original reporter analysis is preserved below.
Argument Injection in git_show Tool Allows Arbitrary File Write Without Approval
Overview
The git_show tool in DeepSeek-TUI executes git show with the model-supplied rev parameter passed unvalidated into the argv. git show honours the --output= option, so a rev value beginning with --output= is interpreted as a flag rather than a revision. The tool is registered with ApprovalRequirement::Auto and declares ToolCapability::ReadOnly, so the write happens without a user prompt and contradicts the capability the catalog advertises to the model and the user.
This is the same vulnerability class as GHSA-72w5-pf8h-xfp4 (CVE-2026-45374): an auto-approved tool produces an effect outside the boundary the user consented to.
Impact
A malicious repository combined with prompt injection, the threat model already documented in CVE-2026-45311 (auto-loaded AGENTS.md is treated as instructions by the model) yields an unprompted arbitrary file write at the privilege of the user running DeepSeek-TUI.
Useful targets reachable as the invoking user:
~/.ssh/authorized_keys~/.bashrc,~/.zshrc,~/.profile~/.gitconfig(chainable into R…
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-75913 has been found in deepseek-tui.
Attackers can target a specific entry point like git_show over the network to misuse the product.
Data can be tampered with by attackers. CVSS score: 9.3/10.
What to do: upgrade deepseek-tui to 0.8.41 or later.
If unsure, ask your IT team or search "deepseek-tui CVE-2026-75913" on the vendor's site.
CVE-2026-75913 (deepseek-tui) — CWE-73 / CVSS v3 9.3
Attack vector: remote (network-reachable) / unauthenticated
Attack surface: git_show / rev / AGENTS.md / core.editor
Patched: 0.8.41 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-73) exists in deepseek-tui. Attackers reach the vulnerable code path via git_show without authentication.
Check the vendor advisory for the affected versions of deepseek-tui. Attack surface: git_show / rev / AGENTS.md / core.editor.
Severity: Critical (CVSS 9.3/10). Data can be tampered with by attackers.
Update to 0.8.41.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'deepseek-tui' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'deepseek-tui' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
deepseek-tuiを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade deepseek-tui to 0.8.41ステージング環境で 0.8.41 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com
- web vulncheck.com
- web github.com