Medium [CVE-2026-13698] From CVEorg collector
This medium-severity Red Hat Linux advisory covers CVE-2026-13698.
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Summary
A memory leak in OpenVPN version 2.5.0 through 2.5.11, 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers with a valid tls-crypt-v2 client key to potentially cause a denial of service A flaw was found in OpenVPN. This can disrupt the availability of the OpenVPN service.
This vulnerability requires a valid `tls-crypt-v2` client key, limiting the attack surface to authenticated remote attackers. While requiring authentication, repeated exploitation could exhaust system resources, impacting service availability on Red Hat supported OpenVPN deployments.
Red Hat severity: Moderate — CVSS 4.9 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
- 2.5.0
- 2.5.11
- 2.6.0
- 2.6.20
- 2.7.4
Official advisory · high-confidence parse· fetched 11 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 11 days ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 11 days ago·verify at source
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