CVE-2026-15713

A vulnerability was found in libsoup's HTTP/2 protocol implementation. The library fails to correctly release memory context blocks under specific stream termination conditions, such as when an HTTP/2 connection encounters window exhaustion or explicit stream resets. A remote, unauthenticated attacker acting as a malicious network peer can trick the connection engine into allocating stream states that are subsequently leaked during cleanup. Over a sustained period, this flaw allows the remote attacker to consume the system's heap allocations incrementally, triggering a denial of service (DoS) through an ultimate Out-of-Memory (OOM) application crash.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-15713
https://bugzilla.redhat.com/show_bug.cgi?id=2499941
https://gitlab.gnome.org/GNOME/libsoup/-/work_items/541

Configurations

No configuration.

History

14 Jul 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-14 20:16

Updated : 2026-07-15 18:20

NVD link : CVE-2026-15713

Mitre link : CVE-2026-15713

CVE.ORG link : CVE-2026-15713

JSON object : View

Products Affected

No product.

CWE

CWE-772

Missing Release of Resource after Effective Lifetime

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