CVE-2026-85977: MLflow — MEDIUM

A flaw was found in libtirpc. A remote attacker can exploit this vulnerability by sending specially crafted PMAPPROC_DUMP replies to a client application that uses the pmap_getmaps() function against an attacker-controlled host. This unbounded decoding can lead to excessive memory and CPU...

Full CISO analysis pending enrichment.

What systems are affected?

Package	Ecosystem	Vulnerable Range	Patched
MLflow	pip	—	No patch
28.6KOpenSSF 5.4695 dependentsPushed 5d ago20% patched~68d to patchFull package profile →
libtirpc	—	—	No patch
libtirpc-main	—	—	No patch
openshift/ose-rhel-coreos-8	—	—	No patch
openshift/ose-rhel-coreos-9	—	—	No patch

How severe is it?

CVSS 3.1

5.3 / 10

EPSS

N/A

Exploitation Status

No known exploitation

Sophistication

N/A

What is the attack surface?

AVNetwork

ACHigh

PRNone

UIRequired

SUnchanged

CNone

INone

AHigh

What should I do?

No patch available

Monitor for updates. Consider compensating controls or temporary mitigations.

Which compliance frameworks are affected?

Compliance analysis pending. Sign in for full compliance mapping when available.

Frequently Asked Questions

What is CVE-2026-85977?

A flaw was found in libtirpc. A remote attacker can exploit this vulnerability by sending specially crafted PMAPPROC_DUMP replies to a client application that uses the pmap_getmaps() function against an attacker-controlled host. This unbounded decoding can lead to excessive memory and CPU allocation, causing the client process to experience a Denial of Service (DoS) due to resource exhaustion.

Is CVE-2026-85977 actively exploited?

No confirmed active exploitation of CVE-2026-85977 has been reported, but organizations should still patch proactively.

How to fix CVE-2026-85977?

No patch is currently available. Monitor vendor advisories for updates.

What is the CVSS score for CVE-2026-85977?

CVE-2026-85977 has a CVSS v3.1 base score of 5.3 (MEDIUM).

What are the technical details?

Original Advisory

A flaw was found in libtirpc. A remote attacker can exploit this vulnerability by sending specially crafted PMAPPROC_DUMP replies to a client application that uses the pmap_getmaps() function against an attacker-controlled host. This unbounded decoding can lead to excessive memory and CPU allocation, causing the client process to experience a Denial of Service (DoS) due to resource exhaustion.

Weaknesses (CWE)

CWE-1050Excessive Platform Resource Consumption within a Loop

CWE-1050 — Excessive Platform Resource Consumption within a Loop: The product has a loop body or loop condition that contains a control element that directly or indirectly consumes platform resources, e.g. messaging, sessions, locks, or file descriptors.

Source: MITRE CWE corpus.