Detections
Analytics

SCA: security update for svelte (GHSA-pr6f-5x2q-rwfp)

medium Tenable Self-Hosted Container Security Plugin ID 442849

Description

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

 - Svelte is a performance oriented web framework. Prior to version 5.55.7, when using spread syntax to
 render attributes from untrusted data, event handler properties are included in the rendered HTML output.
 If an application spreads user-controlled or external data as element attributes, an attacker can inject
 malicious event handlers that execute in victims' browsers. Note that this vulnerability only triggers if
 the user's browser has JavaScript enabled but Svelte's hydration mechanism does not reach the vulnerable
 element before the event fires. This issue has been patched in version 5.55.7. (CVE-2026-42599)

Solution

Update the svelte library and its related packages to version 5.55.7 or later.

See Also

https://github.com/advisories/GHSA-pr6f-5x2q-rwfp

Plugin Details

Severity: Medium

ID: 442849

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 6/9/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.47

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-42599

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.1

Threat Score: 1.2

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/14/2026

Vulnerability Publication Date: 5/14/2026

Reference Information

CVE: CVE-2026-42599

cwe: CWE-79