CVE-2026-27970

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-27970
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27970.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-27970
Aliases
Downstream
Published
2026-02-26T02:03:43.811Z
Modified
2026-03-03T02:57:27.084653Z
Severity
  • 7.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Angular i18n vulnerable to Cross-Site Scripting (XSS)
Details

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Versions prior to 21.2.0, 21.1.16, 20.3.17, and 19.2.19 have a cross-Site scripting vulnerability in the Angular internationalization (i18n) pipeline. In ICU messages (International Components for Unicode), HTML from translated content was not properly sanitized and could execute arbitrary JavaScript. Angular i18n typically involves three steps, extracting all messages from an application in the source language, sending the messages to be translated, and then merging their translations back into the final source code. Translations are frequently handled by contracts with specific partner companies, and involve sending the source messages to a separate contractor before receiving final translations for display to the end user. If the returned translations have malicious content, it could be rendered into the application and execute arbitrary JavaScript. When successfully exploited, this vulnerability allows for execution of attacker controlled JavaScript in the application origin. Depending on the nature of the application being exploited this could lead to credential exfiltration and/or page vandalism. Several preconditions apply to the attack. The attacker must compromise the translation file (xliff, xtb, etc.). Unlike most XSS vulnerabilities, this issue is not exploitable by arbitrary users. An attacker must first compromise an application's translation file before they can escalate privileges into the Angular application client. The victim application must use Angular i18n, use one or more ICU messages, render an ICU message, and not defend against XSS via a safe content security policy. Versions 21.2.0, 21.1.6, 20.3.17, and 19.2.19 patch the issue. Until the patch is applied, developers should consider reviewing and verifying translated content received from untrusted third parties before incorporating it in an Angular application, enabling strict CSP controls to block unauthorized JavaScript from executing on the page, and enabling Trusted Types to enforce proper HTML sanitization.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27970.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-79"
    ]
}
References

Affected packages

Git / github.com/angular/angular

Affected ranges

Type
GIT
Repo
https://github.com/angular/angular
Events
Introduced
bfc2afdb5bf9e668f11ba0a967a5d537e9199b56
Fixed
7f33cbeb6c15894b5b64954e207d5caf2d4acf7d
Database specific 
{
    "versions": [
        {
            "introduced": "21.2.0-next.0"
        },
        {
            "fixed": "21.2.0"
        }
    ]
}
Type
GIT
Repo
https://github.com/angular/angular
Events
Introduced
a0ee6bdfe4102357dd231bcf02f5ff4d44fb585c
Fixed
523c29f622656b3902727e314a3e369ccd6af00b
Database specific 
{
    "versions": [
        {
            "introduced": "21.0.0-next.0"
        },
        {
            "fixed": "21.1.6"
        }
    ]
}
Type
GIT
Repo
https://github.com/angular/angular
Events
Introduced
ab2ee22c3d1a80b7ffe2c74c988dbd2503305b70
Fixed
043125cc56bdb8666f72aac240dcc8afb6854877
Database specific 
{
    "versions": [
        {
            "introduced": "20.0.0-next.0"
        },
        {
            "fixed": "20.3.17"
        }
    ]
}
Type
GIT
Repo
https://github.com/angular/angular
Events
Introduced
5537bf802f8eda54ff7572905cf3bb2fc0e0e431
Fixed
a55475992b6d479f0205c5e03e6a44f9aa48698e
Database specific 
{
    "versions": [
        {
            "introduced": "19.0.0-next.0"
        },
        {
            "fixed": "19.2.19"
        }
    ]
}
Type
GIT
Repo
https://github.com/angular/angular
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
98db1093f8996aad6f9f5c563a9fcdcdc395d77b
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "18.2.14"
        }
    ]
}

Affected versions

10.*
10.0.0-next.0
10.0.0-next.1
10.0.0-next.2
10.0.0-next.3
10.0.0-next.4
10.0.0-next.5
10.0.0-next.6
10.0.0-next.7
10.0.0-next.8
10.0.0-next.9
10.0.0-rc.0
10.1.0-next.0
10.1.0-next.1
10.1.0-next.2
10.1.0-next.3
10.1.0-next.4
10.1.0-next.5
10.1.0-next.6
10.1.0-next.7
10.1.0-next.8
10.1.0-rc.0
11.*
11.0.0-next.0
11.0.0-next.1
11.0.0-next.2
11.0.0-next.3
11.0.0-next.4
11.0.0-next.5
11.0.0-next.6
11.1.0-next.0
11.1.0-next.1
11.1.0-next.2
11.1.0-next.3
11.1.0-next.4
12.*
12.0.0-next.0
12.0.0-next.1
12.0.0-next.2
12.0.0-next.3
12.0.0-next.4
12.0.0-next.5
12.0.0-next.6
12.0.0-next.7
12.0.0-next.8
12.1.0
12.1.0-next.2
12.1.0-next.3
12.1.0-next.4
12.1.0-next.5
12.1.0-next.6
12.2.0-next.0
12.2.0-next.1
12.2.0-next.2
12.2.0-next.3
13.*
13.0.0-next.0
13.0.0-next.1
13.0.0-next.10
13.0.0-next.11
13.0.0-next.12
13.0.0-next.13
13.0.0-next.14
13.0.0-next.2
13.0.0-next.3
13.0.0-next.4
13.0.0-next.5
13.0.0-next.6
13.0.0-next.7
13.0.0-next.8
13.0.0-next.9
13.1.0-next.0
13.1.0-next.1
13.1.0-next.2
13.1.0-next.3
13.2.0-next.0
13.2.0-next.1
13.2.0-next.2
14.*
14.0.0-next.0
14.0.0-next.1
14.0.0-next.10
14.0.0-next.11
14.0.0-next.12
14.0.0-next.13
14.0.0-next.14
14.0.0-next.15
14.0.0-next.2
14.0.0-next.3
14.0.0-next.4
14.0.0-next.5
14.0.0-next.6
14.0.0-next.7
14.0.0-next.8
14.0.0-next.9
14.1.0-next.0
14.1.0-next.1
14.1.0-next.2
14.1.0-next.3
14.1.0-next.4
14.2.0-next.0
14.2.0-next.1
15.*
15.0.0-next.0
15.0.0-next.1
15.0.0-next.2
15.0.0-next.3
15.0.0-next.4
15.0.0-next.5
15.1.0-next.0
15.1.0-next.1
15.1.0-next.2
15.1.0-next.3
15.2.0-next.0
15.2.0-next.1
15.2.0-next.2
15.2.0-next.3
15.2.0-next.4
16.*
16.0.0-next.0
16.0.0-next.1
16.0.0-next.2
16.0.0-next.3
16.0.0-next.4
16.0.0-next.5
16.0.0-next.6
16.1.0-next.0
16.1.0-next.1
16.1.0-next.2
16.1.0-next.3
16.2.0-next.0
16.2.0-next.1
16.2.0-next.2
16.2.0-next.3
16.2.0-next.4
17.*
17.0.0-next.0
17.0.0-next.1
17.0.0-next.2
17.0.0-next.3
17.0.0-next.4
17.0.0-next.5
17.0.0-next.6
17.0.0-next.7
17.1.0-next.0
17.1.0-next.1
17.1.0-next.2
17.1.0-next.3
17.1.0-next.4
17.1.0-next.5
17.2.0-next.0
17.2.0-next.1
17.3.0-next.0
17.3.0-next.1
18.*
18.0.0-next.0
18.0.0-next.1
18.0.0-next.2
18.0.0-next.3
18.0.0-next.4
18.0.0-next.5
18.1.0-next.0
18.1.0-next.1
18.1.0-next.2
18.1.0-next.3
18.1.0-next.4
18.2.0
18.2.0-next.0
18.2.0-next.1
18.2.0-next.2
18.2.0-next.3
18.2.0-next.4
18.2.0-rc.0
18.2.1
18.2.10
18.2.11
18.2.12
18.2.13
18.2.14
18.2.2
18.2.3
18.2.4
18.2.5
18.2.6
18.2.7
18.2.8
18.2.9
19.*
19.0.0-next.0
19.0.0-next.1
19.0.0-next.10
19.0.0-next.2
19.0.0-next.3
19.0.0-next.4
19.0.0-next.5
19.0.0-next.6
19.0.0-next.7
19.0.0-next.8
19.0.0-next.9
19.1.0-next.0
19.1.0-next.1
19.1.0-next.2
19.1.0-next.3
19.1.0-next.4
19.2.0
19.2.0-next.0
19.2.0-next.1
19.2.0-next.2
19.2.0-next.3
19.2.0-rc.0
19.2.1
19.2.10
19.2.11
19.2.12
19.2.13
19.2.14
19.2.15
19.2.16
19.2.17
19.2.2
19.2.3
19.2.4
19.2.5
19.2.6
19.2.7
19.2.8
19.2.9
2.*
2.0.0
2.0.0-alpha.13
2.0.0-alpha.14
2.0.0-alpha.15
2.0.0-alpha.17
2.0.0-alpha.18
2.0.0-alpha.19
2.0.0-alpha.20
2.0.0-alpha.21
2.0.0-alpha.22
2.0.0-alpha.23
2.0.0-alpha.24
2.0.0-alpha.25
2.0.0-alpha.26
2.0.0-alpha.27
2.0.0-alpha.28
2.0.0-alpha.29
2.0.0-alpha.30
2.0.0-alpha.31
2.0.0-alpha.32
2.0.0-alpha.33
2.0.0-alpha.34
2.0.0-alpha.35
2.0.0-alpha.40
2.0.0-alpha.41
2.0.0-alpha.42
2.0.0-alpha.44
2.0.0-alpha.47
2.0.0-alpha.48
2.0.0-alpha.49
2.0.0-alpha.50
2.0.0-alpha.51
2.0.0-alpha.52
2.0.0-alpha.53
2.0.0-alpha.54
2.0.0-alpha.55
2.0.0-beta.0
2.0.0-beta.11
2.0.0-beta.12
2.0.0-beta.13
2.0.0-beta.14
2.0.0-beta.16
2.0.0-beta.17
2.0.0-beta.6
2.0.0-beta.7
2.0.0-beta.8
2.0.0-rc.0
2.0.0-rc.1
2.0.0-rc.2
2.0.0-rc.3
2.0.0-rc.4
2.0.0-rc.5
2.0.0-rc.6
2.0.0-rc.7
2.1.0
2.1.0-beta.0
2.1.0-rc.0
2.2.0
2.2.0-beta.0
2.2.0-beta.1
2.2.0-rc.0
2.3.0
2.3.0-beta.0
2.3.0-rc.0
2.4.0-marker
20.*
20.0.0-next.0
20.0.0-next.1
20.0.0-next.2
20.0.0-next.3
20.0.0-next.4
20.0.0-next.5
20.0.0-next.6
20.0.0-next.7
20.0.0-next.8
20.1.0-next.0
20.1.0-next.1
20.1.0-next.2
20.1.0-next.3
20.2.0
20.2.0-next.0
20.2.0-next.1
20.2.0-next.2
20.2.0-next.3
20.2.0-next.4
20.2.0-next.5
20.2.0-next.6
20.2.0-rc.0
20.2.0-rc.1
20.2.1
20.2.2
20.2.3
20.2.4
20.3.0
20.3.0-rc.0
20.3.1
20.3.10
20.3.11
20.3.12
20.3.13
20.3.14
20.3.15
20.3.2
20.3.3
20.3.4
20.3.5
20.3.6
20.3.7
20.3.8
20.3.9
21.*
21.0.0-next.0
21.0.0-next.1
21.0.0-next.2
21.0.0-next.3
21.0.0-next.4
21.0.0-next.5
21.0.0-next.6
21.0.0-next.7
21.0.0-next.8
21.1.0-next.0
21.1.0-next.1
4.*
4.0.0
4.0.0-beta.0
4.0.0-beta.1
4.0.0-beta.2
4.0.0-beta.3
4.0.0-beta.5
4.0.0-beta.6
4.0.0-beta.7
4.0.0-beta.8
4.0.0-rc.1
4.0.0-rc.2
4.0.0-rc.3
4.0.0-rc.4
4.0.0-rc.5
4.0.0-rc.6
4.1.0
4.1.0-beta.0
4.1.0-beta.1
4.1.0-rc.0
4.2.0-beta.0
4.2.0-rc.0
4.2.0-rc.1
4.2.0-rc.2
4.2.1
4.3.0
4.3.0-beta.0
4.3.0-beta.1
4.3.0-rc.0
5.*
5.0.0-beta.0
5.0.0-beta.1
5.0.0-beta.2
5.0.0-beta.3
5.0.0-beta.4
5.0.0-beta.5
5.0.0-beta.6
5.0.0-beta.7
5.0.0-rc.0
5.0.0-rc.1
5.0.0-rc.2
5.0.0-rc.3
5.0.0-rc.4
5.1.0
5.1.0-beta.0
5.1.0-beta.1
5.1.0-beta.2
5.1.0-rc.0
5.1.0-rc.1
5.2.0
5.2.0-beta.0
5.2.0-beta.1
5.2.0-rc.0
6.*
6.0.0-beta.0
6.0.0-beta.1
6.0.0-beta.2
6.0.0-beta.3
6.0.0-beta.4
6.0.0-beta.6
6.0.0-beta.7
6.0.0-beta.8
6.0.0-rc.0
6.0.0-rc.1
6.0.0-rc.2
6.0.0-rc.3
6.0.0-rc.4
6.0.0-rc.5
6.1.0
6.1.0-beta.0
6.1.0-beta.1
6.1.0-beta.2
6.1.0-beta.3
6.1.0-rc.3
7.*
7.0.0-beta.0
7.0.0-beta.1
7.0.0-beta.2
7.0.0-beta.3
7.0.0-beta.4
7.0.0-beta.5
7.0.0-beta.6
7.0.0-beta.7
7.0.0-rc.0
7.0.0-rc.1
7.1.0
7.1.0-beta.0
7.1.0-beta.1
7.1.0-beta.2
7.1.0-rc.0
7.2.0
7.2.0-beta.1
7.2.0-beta.2
7.2.0-rc.0
8.*
8.0.0-beta.0
8.0.0-beta.1
8.0.0-beta.10
8.0.0-beta.11
8.0.0-beta.12
8.0.0-beta.13
8.0.0-beta.14
8.0.0-beta.2
8.0.0-beta.3
8.0.0-beta.4
8.0.0-beta.5
8.0.0-beta.6
8.0.0-beta.7
8.0.0-beta.8
8.0.0-beta.9
8.0.0-rc.0
8.1.0-beta.0
8.1.0-next.1
8.1.0-next.2
8.1.0-next.3
8.1.0-rc.0
8.2.0-next.0
8.2.0-next.1
8.2.0-next.2
9.*
9.0.0-next.0
9.0.0-next.1
9.0.0-next.10
9.0.0-next.11
9.0.0-next.12
9.0.0-next.13
9.0.0-next.14
9.0.0-next.15
9.0.0-next.2
9.0.0-next.3
9.0.0-next.4
9.0.0-next.5
9.0.0-next.6
9.0.0-next.7
9.0.0-next.8
9.0.0-next.9
9.0.0-rc.0
9.0.0-rc.1
9.1.0-next.0
9.1.0-next.1
9.1.0-next.2
9.1.0-next.4
9.1.0-next.5
9.1.0-rc.0
ngcontainer_0.*
ngcontainer_0.3.0
ngcontainer_0.3.1
ngcontainer_0.3.2
ngcontainer_0.3.3
ngcontainer_0.4.0
ngcontainer_0.5.0
Other
patch_sync
v19.*
v19.2.18
v20.*
v20.3.16
v21.*
v21.1.0
v21.1.0-next.2
v21.1.0-next.3
v21.1.0-next.4
v21.1.0-rc.0
v21.1.1
v21.1.2
v21.1.3
v21.1.4
v21.1.5
v21.2.0-next.0
v21.2.0-next.1
v21.2.0-next.2
v21.2.0-next.3
v21.2.0-rc.0
vsix-21.*
vsix-21.1.0
vsix-21.1.1
zone.*
zone.js-0.10.0
zone.js-0.10.1
zone.js-0.10.2
zone.js-0.10.3
zone.js-0.11.0
zone.js-0.11.2
zone.js-0.11.3
zone.js-0.11.4
zone.js-0.11.5
zone.js-0.11.6
zone.js-0.11.7
zone.js-0.11.8
zone.js-0.12.0
zone.js-0.13.0
zone.js-0.13.1
zone.js-0.13.2
zone.js-0.13.3
zone.js-0.14.0
zone.js-0.14.1
zone.js-0.14.10
zone.js-0.14.2
zone.js-0.14.3
zone.js-0.14.4
zone.js-0.14.5
zone.js-0.14.6
zone.js-0.14.7
zone.js-0.14.8
zone.js-0.15.0
zone.js-0.15.1
zone.js-0.16.0
zone.js-0.9.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27970.json"