Detections
Analytics

SCA: security update for Akka.Cluster, Akka.Remote (GHSA-jhpv-4q4f-43g5)

critical Tenable Self-Hosted Container Security Plugin ID 435530

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Akka.NET is a .NET port of the Akka project from the Scala / Java community. In all versions of
 Akka.Remote from v1.2.0 to v1.5.51, TLS could be enabled via our `akka.remote.dot-netty.tcp` transport and
 this would correctly enforce private key validation on the server-side of inbound connections.
 Akka.Remote, however, never asked the outbound-connecting client to present ITS certificate - therefore
 it's possible for untrusted parties to connect to a private key'd Akka.NET cluster and begin communicating
 with it without any certificate. The issue here is that for certificate-based authentication to work
 properly, ensuring that all members of the Akka.Remote network are secured with the same private key,
 Akka.Remote needed to implement mutual TLS. This was not the case before Akka.NET v1.5.52. Those who run
 Akka.NET inside a private network that they fully control or who were never using TLS in the first place
 are now affected by the bug. However, those who use TLS to secure their networks must upgrade to Akka.NET
 V1.5.52 or later. One patch forces "fail fast" semantics if TLS is enabled but the private key is missing
 or invalid. Previous versions would only check that once connection attempts occurred. The second patch, a
 critical fix, enforces mutual TLS (mTLS) by default, so both parties must be keyed using the same
 certificate. As a workaround, avoid exposing the application publicly to avoid the vulnerability having a
 practical impact on one's application. However, upgrading to version 1.5.52 is still recommended by the
 maintainers. (CVE-2025-61778)

See Also

https://github.com/advisories/GHSA-jhpv-4q4f-43g5

Plugin Details

Severity: Critical

ID: 435530

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 10/8/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.2

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2025-61778

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/7/2025

Vulnerability Publication Date: 10/6/2025

Reference Information

CVE: CVE-2025-61778

cwe: CWE-290