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CVE-2026-4271

MEDIUM

5.3

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).

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/17/2026

Derniere modification3/19/2026

Sourcenvd

Observations honeypot0

Produits affectes

gnome:libsoupredhat:enterprise_linux

Faiblesses (CWE)

CWE-416

References

https://access.redhat.com/security/cve/CVE-2026-4271(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2448044(secalert@redhat.com)

https://gitlab.gnome.org/GNOME/libsoup/-/issues/496(secalert@redhat.com)

https://gitlab.gnome.org/GNOME/libsoup/-/issues/496(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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