Detections
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Echo: libsoup3: security update to 3.6.6-1+e12

medium Tenable Cloud Security Plugin ID 473738

Description

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

 - A vulnerability was found in libsoup's HTTP/2 protocol implementation. The library fails to correctly
 release memory context blocks under specific stream termination conditions, such as when an HTTP/2
 connection encounters window exhaustion or explicit stream resets. A remote, unauthenticated attacker
 acting as a malicious network peer can trick the connection engine into allocating stream states that are
 subsequently leaked during cleanup. Over a sustained period, this flaw allows the remote attacker to
 consume the system's heap allocations incrementally, triggering a denial of service (DoS) through an
 ultimate Out-of-Memory (OOM) application crash. (CVE-2026-15713)

Solution

Update the libsoup3 library and its related packages to version 3.6.6-1+e12 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-15713

Plugin Details

Severity: Medium

ID: 473738

Version: Revision 1.1

Type: Local

Published: 10/8/2026

Updated: 10/8/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2026-15713

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/24/2026

Vulnerability Publication Date: 7/14/2026

Reference Information

CVE: CVE-2026-15713

IAVA: 2026-A-0894