CVE-2026-88058

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Source
https://cve.org/CVERecord?id=CVE-2026-88058
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-88058.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-88058
Aliases
Downstream
CLSA (706)
DEBIAN (1)
UBUNTU (1)
Published
2026-09-10T18:56:03Z
Modified
2026-10-21T02:30:40Z
Severity
  • 8.6 (High) CVSS_V4 - CVSS: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 Calculator
Summary
Angular: SSR XSS via Unescaped Processing Instruction (<?...?>) Nodes in Fallback Raw-Content Elements
Details

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.30, 21.2.22, and 22.1.4, Angular server-side rendering (SSR) in @angular/platform-server serializes ProcessingInstruction DOM nodes inside fallback raw-content elements without escaping matching ancestor closing tags. ProcessingInstruction data escaped greater-than characters but left less-than characters untouched and did not inspect fallback ancestors, so data such as a matching closing tag prematurely terminates noscript, iframe, noembed, or noframes containers. The vulnerable nodes cannot be authored through standard Angular templates; reachability requires application or library code using inject(DOCUMENT).createProcessingInstruction with attacker-controlled data or Renderer2 DOM insertion inside a fallback container. In HTML5 RAWTEXT parsing, the premature close causes subsequent sibling elements to be interpreted as live HTML and enables arbitrary JavaScript execution in a victim's browser. This issue is fixed in versions 20.3.30, 21.2.22, and 22.1.4.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-116",
        "CWE-79"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88058.json"
}
References

Affected packages

Git / github.com/angular/angular

Affected ranges

Type
GIT
Repo
https://github.com/angular/angular
Events
Introduced
e7566c3c475560616f97de2ab3c8f8d6f83be015
Last Affected
6d1753b46b7389c10aa17da2327043fbf5296035
Introduced
40e2b5b4d13792ed7c46a1d22afcf6c12ac9c679
Fixed
4ee0421f0c4c84d9042bc94cf9613d005f8f9505
Introduced
00dcbf2eeb3fd18ed39148e4bc9e49a5b35cae0c
Fixed
4c0bc4345a41ab48d8361e0bff18191da9c8c065
Introduced
862d27f25c4d3bf2fe2918b76759f3f4a83563d1
Fixed
898380974d49cf7976e9d89cc74a0801a26ce7b1
Fixed
73d8bbd27cb46495426d4132975a1355b47ad915
Fixed
89b20568dfaee1ec8e0b3bcf1872acdddd2f4fef
Fixed
ba3bc47b20b3d12f5eb141ec9c651373ae4d15e8
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*",
            "range":  [
                {
                    "introduced":  "19.0.0"
                },
                {
                    "last_affected":  "19.2.25"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*",
            "range":  [
                {
                    "introduced":  "20.0.0"
                },
                {
                    "fixed":  "20.3.30"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*",
            "range":  [
                {
                    "introduced":  "21.0.0"
                },
                {
                    "fixed":  "21.2.22"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*",
            "range":  [
                {
                    "introduced":  "22.0.0"
                },
                {
                    "fixed":  "22.1.4"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "range":  [
                {
                    "fixed":  "73d8bbd27cb46495426d4132975a1355b47ad915"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "range":  [
                {
                    "fixed":  "89b20568dfaee1ec8e0b3bcf1872acdddd2f4fef"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "range":  [
                {
                    "fixed":  "ba3bc47b20b3d12f5eb141ec9c651373ae4d15e8"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v20.3.30",
            "range":  [
                {
                    "fixed":  "4ee0421f0c4c84d9042bc94cf9613d005f8f9505"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "original_tag":  "v21.2.22",
            "range":  [
                {
                    "fixed":  "4c0bc4345a41ab48d8361e0bff18191da9c8c065"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "original_tag":  "v22.1.4",
            "range":  [
                {
                    "fixed":  "898380974d49cf7976e9d89cc74a0801a26ce7b1"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}
Type
GIT
Repo
https://github.com/angular/domino
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
04f987dc08ff3736b427f50941adf1722458528f
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "fixed":  "04f987dc08ff3736b427f50941adf1722458528f"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-88058.json"