CVE-2026-88060Public exploitNetwork attack vector

JavaScript execution via truncated serializer ancestor traversal

Published Sep 10, 2026 · Updated Sep 10, 2026

Cross-site scripting in affected Angular @angular/platform-server releases allows remote attackers to execute JavaScript through crafted SSR input. The Domino serializer stops fallbackRawContentTags ancestor traversal at template.content's DocumentFragment and emits matching closing tags without escaping. Exploitation requires attacker-controlled content in template content nested in noscript, iframe, noembed, or noframes; browser RAWTEXT parsing then activates trailing markup.

CVSS severity8.6
High
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in affected Angular @angular/platform-server releases allows remote attackers to execute JavaScript through crafted SSR input. The Domino serializer stops fallbackRawContentTags ancestor traversal at template.content's DocumentFragment and emits matching closing tags without escaping. Exploitation requires attacker-controlled content in template content nested in noscript, iframe, noembed, or noframes; browser RAWTEXT parsing then activates trailing markup.

The record

CVE
CVE-2026-88060
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
Angular
Product
Angular
Classifications
CWE-79, CWE-116, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record 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=<= 19.2.25
  2. Affected versionversion=>= 20.0.0, < 20.3.30
  3. Affected versionversion=>= 21.0.0, < 21.2.22
  4. Affected versionversion=>= 22.0.0, < 22.1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Angular · Angularversion=<= 19.2.25; version=>= 20.0.0, < 20.3.30; version=>= 21.0.0, < 21.2.22; version=>= 22.0.0, < 22.1.4

Published CVSS scores

8.6GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-116Improper Encoding or Escaping of Output
T1203Exploitation for Client Execution

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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