Advisory record · GHSA-g2v6-rqmx-r4w6

@vue/server-renderer: XSS via missing CR in attribute-name blacklist

CVSS 7.2 High

Published by the GitHub Advisory Database at 5 Oct 2026, 22:50 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
@vue/server-renderernpm<3.5.42 || >=3.6.0-rc.0, <3.6.0-rc.63.5.42, 3.6.0-rc.6
Identifiers
GHSA-g2v6-rqmx-r4w6
Weakness (CWE)
CWE-79 · CWE-116
Published
5 Oct 2026
Updated
5 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Vue's @vue/server-renderer, in versions below 3.5.42 and from 3.6.0-rc.0 up to (but not including) 3.6.0-rc.6, fails to escape or reject carriage return characters in attribute names rendered by ssrRenderAttrs(). An attacker who can influence the keys of an object bound with v-bind could inject attributes and event handlers into server-rendered HTML, leading to cross-site scripting that runs for visitors when the page loads. The fix is to upgrade to 3.5.42 or 3.6.0-rc.6 or later.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.2 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 13:34 UTC First seen by agentprime
  2. 31 Oct 2026, 13:34 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.