CVE-2024-9506Public exploitNetwork attack vector

Template-compilation delay via inefficient closing-tag regular expression

Published Oct 15, 2024 · Updated Oct 15, 2024

Regular expression denial of service in Vue.js 2.0.0 through 2.7.16 allows remote attackers to delay template compilation via malformed markup. The parseHTML routine in html-parser.ts applies an inefficient closing-tag regular expression to long script, style, or textarea content with a mismatched end tag. The consuming application must pass attacker-controlled text to the Vue 2 compiler; successful exploitation consumes CPU and delays parsing and mounting without altering or exposing data.

CVSS severity3.7
Low
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Regular expression denial of service in Vue.js 2.0.0 through 2.7.16 allows remote attackers to delay template compilation via malformed markup. The parseHTML routine in html-parser.ts applies an inefficient closing-tag regular expression to long script, style, or textarea content with a mismatched end tag. The consuming application must pass attacker-controlled text to the Vue 2 compiler; successful exploitation consumes CPU and delays parsing and mounting without altering or exposing data.

The record

CVE
CVE-2024-9506
Published
Oct 15, 2024
Updated
Oct 15, 2024
Vendor
Vue.js
Product
Vue.js
Classifications
CWE-1333, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0.0 <=2.7.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Vue.js · Vue.jsversion=2.0.0 <=2.7.16

Published CVSS scores

3.7GitLab Advisory DatabaseCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
2.9GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1333Inefficient Regular Expression Complexity
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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