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CVE Record

CVE-2026-22610: Angular has XSS Vulnerability via Unsanitized SVG Script Attributes

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to versions 19.2.18, 20.3.16, 21.0.7, and 21.1.0-rc.0, a cross-site scripting (XSS) vulnerability has been identified in the Angular Template Compiler. The vulnerability exists because Angular’s internal sanitization schema fails to recognize the href and xlink:href attributes of SVG <script> elements as a Resource URL context. This issue has been patched in versions 19.2.18, 20.3.16, 21.0.7, and 21.1.0-rc.0.

HighCVSS 8.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Angular versions before the listed fixes can mishandle certain SVG script link attributes, creating an XSS risk. In business terms, a vulnerable app could let attacker-controlled content run in a user’s browser if the required conditions are met. The source bundle provides fixes but no evidence of active exploitation.

Executive priority

Treat this as a high-priority dependency upgrade for internet-facing Angular applications. The issue can affect browser-side trust and data integrity, but current evidence in the bundle does not support emergency active-exploitation handling.

Technical view

CVE-2026-22610 is a CWE-79 issue in Angular’s Template Compiler sanitization schema. It fails to treat SVG <script> href and xlink:href attributes as Resource URL contexts. Fixed versions are 19.2.18, 20.3.16, 21.0.7, and 21.1.0-rc.0.

Likely exposure

Exposure is likely limited to applications built with affected Angular versions, especially where SVG-related template content or attacker-influenced values may be rendered. The bundle references Siemens advisories, but does not provide enough detail here to name specific Siemens product exposure.

Exploitation context

The CVSS vector indicates network access, low attack complexity, low privileges, and user interaction. The source bundle marks KEV as false and provides no cited evidence of in-the-wild exploitation, so active exploitation should not be assumed.

Researcher notes

Focus analysis on Angular compiler sanitization behavior for SVG script href and xlink:href attributes. Avoid assuming exploitability in every Angular app; practical exposure depends on version, template usage, and attacker control of rendered data.

Mitigation direction

  • Upgrade Angular to 19.2.18, 20.3.16, 21.0.7, 21.1.0-rc.0, or later.
  • Prioritize public-facing Angular applications and apps handling untrusted user content.
  • Check Angular’s advisory and vendor guidance for any version-specific upgrade notes.
  • Track referenced Siemens advisories if your environment uses Siemens products.
  • Retest affected user-facing workflows after upgrading Angular.

Validation and detection

  • Inventory Angular versions from dependency manifests, lockfiles, and SBOMs.
  • Compare each application against the affected version ranges in the CVE record.
  • Confirm CI builds use the patched Angular compiler version.
  • Review routes or components that render SVG or user-controlled template data.
  • Verify no production deployment still references vulnerable Angular builds.
Prepared
Confidence
high
Sources
7

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-22610 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.5 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
2ADP providers
6Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.5CVSS 4.0HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NGitHub_M

Vulnerability scoring details

Base CVSS 4.0 score

8.5High
CVSS 4.0 vector shape for CVE-2026-22610Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
siemens-SADPADP container
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
angularangular>= 21.1.0-next.0, < 21.1.0-rc.0, >= 21.0.0-next.0, < 21.0.7, >= 20.0.0-next.0, < 20.3.16, < 19.2.18Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.