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).
Metrics
Affected Vendors & Products
References
History
Thu, 19 Mar 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:gnome:libsoup:-:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |
Wed, 18 Mar 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Gnome
Gnome libsoup |
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| Vendors & Products |
Gnome
Gnome libsoup |
Tue, 17 Mar 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 17 Mar 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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| Metrics |
threat_severity
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threat_severity
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Tue, 17 Mar 2026 11:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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). | |
| Title | Libsoup: libsoup: denial of service via use-after-free in http/2 server | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-416 | |
| CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published: 2026-03-17T11:14:21.284Z
Updated: 2026-03-19T20:55:53.132Z
Reserved: 2026-03-16T14:43:58.712Z
Link: CVE-2026-4271
Updated: 2026-03-17T12:58:28.135Z
Status : Analyzed
Published: 2026-03-17T12:16:13.280
Modified: 2026-03-19T19:33:46.743
Link: CVE-2026-4271
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