Secuno
ENNL
Book demo

CVE-2026-32314

Protocol Yamux vulnerability

7.5 HIGHPublic exploitEPSS 0.57%
  1. Published16 Mar 2026

Description

Yamux is a stream multiplexer over reliable, ordered connections such as TCP/IP. Prior to 0.13.10, the Rust implementation of Yamux can panic when processing a crafted inbound Data frame that sets SYN and uses a body length greater than DEFAULT_CREDIT (e.g. 262145). On the first packet of a new inbound stream, stream state is created and a receiver is queued before oversized-body validation completes. When validation fails, the temporary stream is dropped and cleanup may call remove(...).expect("stream not found"), triggering a panic in the connection state machine. This is remotely reachable over a normal Yamux session and does not require authentication. This vulnerability is fixed in 0.13.10.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Protocol Yamux< 0.13.10

Remediation

Fixed in
Protocol Yamux≥ 0.13.10

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-929548.6
vm2 is a sandbox library for running untrusted JavaScript in Node.js. In versions >=…
CVE-2026-440018.6
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox escape…
CVE-2026-331918.6
Free5GC is an open-source Linux Foundation project for 5th generation (5G) mobile core…
CVE-2025-676479.1
SvelteKit is a framework for rapidly developing robust, performant web applications…
CVE-2024-433578.6
ECMA-262 is the language specification for the scripting language ECMAScript. A problem…
CVE-2023-200868.6
A vulnerability in ICMPv6 processing of Cisco Adaptive Security Appliance (ASA)…

Frequently asked

Is CVE-2026-32314 being actively exploited?

CVE-2026-32314 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.57%.

How severe is CVE-2026-32314?

CVE-2026-32314 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.57% probability of exploitation.

Which products are affected by CVE-2026-32314?

Affected products include Protocol Yamux.

How do I fix CVE-2026-32314?

Upgrade affected software to a fixed version, for example Protocol Yamux 0.13.10 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-32314 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.