CVE-2026-15713: Missing Release of Resource after Effective Lifetime in Red Hat Red Hat Enterprise Linux 10
CVE-2026-15713 is a medium severity vulnerability in libsoup's HTTP/2 implementation on Red Hat Enterprise Linux 10. The issue involves improper release of memory context blocks under certain stream termination conditions, such as window exhaustion or explicit stream resets. A remote unauthenticated attacker can exploit this to cause incremental memory leaks, potentially leading to an application crash due to out-of-memory conditions.
AI Analysis
Technical Summary
This vulnerability affects the HTTP/2 protocol implementation in the libsoup library used by Red Hat Enterprise Linux 10. The library fails to correctly release allocated memory context blocks when streams terminate under specific conditions like window exhaustion or explicit stream resets. A remote attacker acting as a malicious network peer can cause the connection engine to allocate stream states that are leaked during cleanup. Over time, this memory leak can exhaust heap allocations, resulting in a denial of service via application crash due to out-of-memory.
Potential Impact
The vulnerability allows a remote, unauthenticated attacker to cause a denial of service by incrementally leaking memory on the affected system. This can lead to an application crash due to out-of-memory conditions. There is no indication of confidentiality or integrity impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-15713 for current remediation guidance. No official fix or workaround is stated in the provided data. Until a patch is available, consider limiting exposure to untrusted HTTP/2 network peers if possible.
CVE-2026-15713: Missing Release of Resource after Effective Lifetime in Red Hat Red Hat Enterprise Linux 10
Description
CVE-2026-15713 is a medium severity vulnerability in libsoup's HTTP/2 implementation on Red Hat Enterprise Linux 10. The issue involves improper release of memory context blocks under certain stream termination conditions, such as window exhaustion or explicit stream resets. A remote unauthenticated attacker can exploit this to cause incremental memory leaks, potentially leading to an application crash due to out-of-memory conditions.
CVSS v3.1
Score 5.9medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the HTTP/2 protocol implementation in the libsoup library used by Red Hat Enterprise Linux 10. The library fails to correctly release allocated memory context blocks when streams terminate under specific conditions like window exhaustion or explicit stream resets. A remote attacker acting as a malicious network peer can cause the connection engine to allocate stream states that are leaked during cleanup. Over time, this memory leak can exhaust heap allocations, resulting in a denial of service via application crash due to out-of-memory.
Potential Impact
The vulnerability allows a remote, unauthenticated attacker to cause a denial of service by incrementally leaking memory on the affected system. This can lead to an application crash due to out-of-memory conditions. There is no indication of confidentiality or integrity impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-15713 for current remediation guidance. No official fix or workaround is stated in the provided data. Until a patch is available, consider limiting exposure to untrusted HTTP/2 network peers if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-07-14T10:14:16.964Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-15713","vendor":"Red Hat"}]
Threat ID: 6a56962468715ace431dc685
Added to database: 07/14/2026, 20:03:48 UTC
Last enriched: 07/14/2026, 22:33:23 UTC
Last updated: 07/15/2026, 03:34:47 UTC
Views: 6
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