A flaw was found in libtirpc. An authenticated remote attacker could exploit this vulnerability by sending oversized wrapped data requests to an RPC… (CVE-2026-85231)
Description
A vulnerability in libtirpc allows an authenticated remote attacker to cause a denial of service by sending oversized wrapped data requests to an RPC service configured with RPCSEC_GSS integrity or privacy. This leads to unbounded memory allocation, exhausting system resources and destabilizing or terminating the service.
CVSS v3.1
Score 6.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-85231 is a vulnerability in libtirpc where an authenticated remote attacker can exploit the RPC service configured with RPCSEC_GSS by sending oversized wrapped data requests. This triggers unbounded memory allocation, resulting in denial of service due to resource exhaustion and service instability or termination. The vulnerability has a CVSS 3.1 score of 6.5, indicating a medium severity level. No known exploits are reported in the wild, and no patch or remediation information is currently provided.
Potential Impact
The vulnerability can cause denial of service by exhausting system memory resources, leading to instability or termination of the affected RPC service. There is no impact on confidentiality or integrity according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the RPC service to trusted authenticated users and monitor for unusual resource consumption patterns.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-xhf3-w45r-cmh3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-85231"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad2aed82cdf04f656454b9d
Added to database: 10/16/2026, 23:10:16 UTC
Last enriched: 10/16/2026, 23:12:23 UTC
Last updated: 10/17/2026, 00:48:08 UTC
Views: 2
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