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CVE-2026-66981

HCL AION is affected by multiple security vulnerabilities.

CVSS score

6.5

EPSS probability

—

Risk score

0.7

Published

2 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

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Vulnerability description

DayBreach AI Explanation

Verified against sources

HCL AION Host Header Vulnerability

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

HCL AION is affected by a vulnerability where the application trusts the value of the HTTP Host header supplied in requests without validation [S0]. An attacker can manipulate this header to influence links, redirects, or responses generated by the application [S0]. This may result in unintended behavior or security impact under certain conditions [S0].

Why does it matter?

Failing to validate the HTTP Host header allows attackers to manipulate links and responses generated by the application [S0]. This weakness can lead to security impacts and unintended behavior under certain conditions [S0].

What should be done?

  • Follow the vendor advisory [S0]
  • Review updates and patches provided by HCL Software [S1]
Chain of evidence and sources2 verified claims

HCL AION, HTTP Host üst bilgisinin doğrulama yapılmadan kabul edilmesi nedeniyle güvenlik açığından etkilenmektedir.

S0 · daybreach-canonicalS1 · cvelist

İncelenen resmi kaynaklarda yama durumu doğrulanamamıştır.

S0 · daybreach-canonical
Show the technical text from the sources

HCL AION is affected by a vulnerability where the application trusted the value of the HTTP Host header supplied in requests without validation. An attacker could manipulate this header to influence links, redirects or responses generated by the application, potentially resulting in unintended behavior or security impact under certain conditions.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

CWE: CWE-74

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-66981 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1HCL SoftwareHCL AION View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
6.5CVSS V3_1MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:LCVE CNA
6.5CVSS V31MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:LNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-66981 is associated with the following CWEs:

CWE-74: Common Weakness Enumeration Entry CWE-74

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-66981 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsLow
UserGerekiyor

Official Sources and Advisories

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0135217vendor-advisory

CVSS Vector Radar Chart

6.5 / 10
Attack VectorNetworkComplexityLowPrivilegesLowUser Interact.RequiredConfidentialityLowIntegrityLowAvailabilityLow

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow privileges
User Interaction—
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)Low
Availability (Erişilebilirlik)Low

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

HS
HCL Software logo
HCL Software

Weakness Type (CWE & CAPEC)

CWE-74

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CVE-2026-66981 · HCL AION is affected by multiple security…