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SCA: security update for github.com/quic-go/webtransport-go (GHSA-g35j-m5xg-vh3q)

medium Tenable Cloud Security Plugin ID 445373

Description

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

 - webtransport-go is an implementation of the WebTransport protocol. Prior to 0.11.1,
 Session.parseNextCapsule() in session.go skips an unknown WebTransport capsule on the HTTP/3 request
 stream by calling io.ReadAll on the capsule reader, retaining the complete declared capsule body in
 memory. A malicious peer can send a large unknown capsule and cause a client or server to allocate memory
 for the full payload; QUIC flow control does not bound the total retained allocation because reading
 advances the flow-control window while the received bytes remain in memory. The resulting memory and
 resource exhaustion can disrupt or crash the affected process. This issue is fixed in version 0.11.1.
 (CVE-2026-57497)

Solution

Update the github.com/quic-go/webtransport-go library and its related packages to version 0.11.1 or later.

See Also

https://github.com/advisories/GHSA-g35j-m5xg-vh3q

Plugin Details

Severity: Medium

ID: 445373

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 7/25/2026

Updated: 9/15/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-57497

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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: 7/24/2026

Reference Information

CVE: CVE-2026-57497

cwe: CWE-770