CVE-2026-68945Network attack vector

Backend response reuse via comma-joined parameters

Published Aug 3, 2026 · Updated Aug 3, 2026

Cache-key ambiguity in @angular/common before 20.3.27, 21.2.19, and 22.0.2 allows remote attackers to reuse wrong backend responses. The HttpTransferCache sortAndConcatParams function converts repeated values to comma-joined text, so a scalar comma value and repeated parameters at the same URL produce identical key material. Exploitation requires server-side rendering with transfer caching and a same-render request sequence, enabling disclosure or state poisoning when a trusted request receives attacker-influenced cached data.

CVSS severity8.8
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cache-key ambiguity in @angular/common before 20.3.27, 21.2.19, and 22.0.2 allows remote attackers to reuse wrong backend responses. The HttpTransferCache sortAndConcatParams function converts repeated values to comma-joined text, so a scalar comma value and repeated parameters at the same URL produce identical key material. Exploitation requires server-side rendering with transfer caching and a same-render request sequence, enabling disclosure or state poisoning when a trusted request receives attacker-influenced cached data.

The record

CVE
CVE-2026-68945
Published
Aug 3, 2026
Updated
Aug 3, 2026
Vendor
Angular
Product
@angular/common
Classifications
CWE-345, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=< 20.3.27
  2. Affected versionversion=>= 21.0.0-next.0, < 21.2.19
  3. Affected versionversion=>= 22.0.0-next.0, < 22.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Angular · @angular/commonversion=< 20.3.27; version=>= 21.0.0-next.0, < 21.2.19; version=>= 22.0.0-next.0, < 22.0.2
Angular · Angularversion=< 20.3.27; version=>= 21.0.0-next.0, < 21.2.19; version=>= 22.0.0-next.0, < 22.0.2

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
8.8GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-345Insufficient Verification of Data Authenticity
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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