CVE detail
CVE-2026-4271
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).
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 19.5 · diversity 11.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
6 source links · newest first
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/496gitlab.gnome.org
No excerpt available.
Exploitgitlab.gnome.orgMar 17, 2026, 12:16 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2448044bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comMar 17, 2026, 12:16 PM - https://access.redhat.com/security/cve/CVE-2026-4271access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 17, 2026, 12:16 PM - https://access.redhat.com/errata/RHSA-2026:19143access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 17, 2026, 12:16 PM - https://access.redhat.com/errata/RHSA-2026:17482access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 17, 2026, 12:16 PM - https://access.redhat.com/errata/RHSA-2026:15968access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 17, 2026, 12:16 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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