Detections
Analytics

Echo: openssl-3.5.0: security update to 3.5.0+e1

high Tenable Self-Hosted Container Security Plugin ID 478497

Description

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

 - Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with
 packets containing PATH_CHALLENGE frames. Impact summary: A malicious remote peer can cause an unbounded
 memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or
 server and a Denial of Service. A remote peer may exhaust heap memory by flooding the local QUIC stack
 with PATH_CHALLENGE frames. The local QUIC stack allocates a PATH_RESPONSE frame for every PATH_CHALLENGE
 it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception
 of the PATH_RESPONSE frame which will not be done by a malicious peer. The FIPS modules in 4.0, 3.6, 3.5,
 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary.
 (CVE-2026-34183)

Solution

Update the openssl-3.5.0 library and its related packages to version 3.5.0+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-34183

Plugin Details

Severity: High

ID: 478497

Version: Revision 1.1

Type: Local

Published: 11/5/2026

Updated: 11/5/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.05

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-34183

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 11/5/2026

Vulnerability Publication Date: 6/9/2026

Reference Information

CVE: CVE-2026-34183