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High, CVSS 8.7amended

CodeWhale: Project config instructions override enables arbitrary file read into AI system prompt via cloned repository

CVE-2026-75859GHSA-62f5-cp2p-vq95

What to do

Partial vendor fix. Follow the primary source's mitigation guidance and check back for a fix.

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

  • npm codewhale

    Affected
    >= 0.8.41, < 0.8.64
    Fixed in
    0.8.64

  • npm deepseek-tui

    Affected
    >= 0.8.8, < 0.8.41
    Fixed in
    0.8.41

  • crates.io codewhale-tui

    Affected
    >= 0.8.41, < 0.8.64
    Fixed in
    0.8.64

  • crates.io deepseek-tui

    Affected
    >= 0.8.8
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N · score source
EPSS
  • CVE-2026-75859: 0.53% estimated exploitation activity in the next 30 days; percentile 44.85 (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.

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 43563356b98c6b993085554da82e77370160a31c. Users should upgrade to 0.8.64 or later. The original reporter analysis is preserved below. Summary A malicious .codewhale/config.toml or .deepseek/config.toml committed to a repository can set instructions to an array of arbitrary file paths (including paths outside the workspace like ~/.ssh/idrsa or ~/.aws/credentials) that are read from disk and injected into the AI model's system prompt. There is no path validation, workspace boundary check, or tightening guard on the instructions field. This enables a malicious repository to exfiltrate the contents of sensitive files on the victim's machine through the AI conversation. Details The project config merge function at crates/tui/src/main.rs:5190-5197 (v0.8.50) copies the instructions array from a project-level…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-62f5-cp2p-vq95

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-62f5-cp2p-vq95

Agent brief

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# Patch Next advisory brief: CVE-2026-75859

Advisory: CodeWhale: Project config `instructions` override enables arbitrary file read into AI system prompt via cloned repository
IDs: CVE-2026-75859, GHSA-62f5-cp2p-vq95
Record: https://patchnext.com/advisories/cve-2026-75859 (revision 3, source checked 26 Oct 2026, 13:02 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Partial vendor fix; fixed versions by package: codewhale 0.8.64; deepseek-tui 0.8.41; codewhale-tui 0.8.64. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm codewhale: affected >= 0.8.41, < 0.8.64; fixed in 0.8.64
- npm deepseek-tui: affected >= 0.8.8, < 0.8.41; fixed in 0.8.41
- crates.io codewhale-tui: affected >= 0.8.41, < 0.8.64; fixed in 0.8.64
- crates.io deepseek-tui: affected >= 0.8.8

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

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on codewhale, deepseek-tui, codewhale-tui.
- 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-62f5-cp2p-vq95 (OSV record GHSA-62f5-cp2p-vq95 lists affected ranges: crates.io deepseek-tui >=0.8.8; npm deepseek-tui >=0.8.8 =0.8.41 =0.8.41 <0.8.64 (fixed))
- Verified: https://github.com/advisories/GHSA-62f5-cp2p-vq95 (GitHub-reviewed advisory GHSA-62f5-cp2p-vq95 lists affected ranges: npm deepseek-tui >=0.8.8 =0.8.41 <0.8.64)

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