EUVD-2026-12568
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Lifecycle Timeline
4Tags
Description
A flaw was found in libsoup, a library for handling HTTP requests. This vulnerability, known as a Use-After-Free, occurs in the HTTP/2 server implementation. A remote attacker can exploit this by sending specially crafted HTTP/2 requests that cause authentication failures. This can lead to the application attempting to access memory that has already been freed, potentially causing application instability or crashes, resulting in a Denial of Service (DoS).
Analysis
HTTP/2 server implementations in libsoup across Debian and Red Hat Enterprise Linux versions contain a use-after-free vulnerability that allows unauthenticated remote attackers to trigger application crashes through specially crafted requests. Exploitation results in denial of service by forcing the application to access freed memory, causing instability. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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Priority Score
Vendor Status
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | vulnerable | 2.72.0-2 | - |
| bullseye (security) | vulnerable | 2.72.0-2+deb11u3 | - |
| bookworm | vulnerable | 2.74.3-1+deb12u1 | - |
| trixie | vulnerable | 2.74.3-10.1 | - |
| (unstable) | fixed | (unfixed) | - |
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bookworm | vulnerable | 3.2.3-0+deb12u2 | - |
| trixie | vulnerable | 3.6.5-3 | - |
| forky, sid | vulnerable | 3.6.6-1 | - |
| (unstable) | fixed | (unfixed) | - |
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External POC / Exploit Code
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