CVE-2026-54266

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Source
https://cve.org/CVERecord?id=CVE-2026-54266
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54266.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-54266
Aliases
Downstream
Published
2026-06-22T15:28:42.561Z
Modified
2026-07-11T04:04:08.416531938Z
Severity
  • 8.8 (High) CVSS_V4 - 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 Calculator
Summary
Angular: Weak 32-Bit Cache Key Hashing in `HttpTransferCache` Leading to Cross-Request Data Leakage and State Poisoning
Details

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, Angular's HttpTransferCache caches HTTP requests made during Server-Side Rendering (SSR) so that they can be reused during client-side hydration. This avoids repeating the same HTTP requests on the client. The cached responses are stored in TransferState using a cache key generated by hashing request properties (method, response type, mapped URL, serialized body, and sorted query parameters). The cache keys are generated using a weak 32-bit DJB2-like polynomial rolling hash. The 32-bit hash space is extremely small, allowing attackers to find hash collisions. An attacker can easily find a query parameter string (e.g., q=aaCAZMMM for a search request) that produces the exact same 32-bit hash as a sensitive endpoint (e.g., /api/user/profile). When a victim visits a crafted link containing the colliding parameter, the SSR process executes both the search request and the profile request. Due to the hash collision, the search response overwrites the profile response in the TransferState cache. This vulnerability is fixed in 22.0.1, 21.2.17, and 20.3.25.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": ">= 22.0.0-next.0 < 22.0.1"
                },
                {
                    "last_affected": ">= 22.0.0-next.0 < 22.0.1"
                },
                {
                    "introduced": ">= 21.0.0-next.0 < 21.2.17"
                },
                {
                    "last_affected": ">= 21.0.0-next.0 < 21.2.17"
                },
                {
                    "introduced": ">= 20.0.0-next.0 < 20.3.25"
                },
                {
                    "last_affected": ">= 20.0.0-next.0 < 20.3.25"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54266.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-328",
        "CWE-345"
    ]
}
References

Affected packages

Git / github.com/angular/angular

Affected ranges

Type
GIT
Repo
https://github.com/angular/angular
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Introduced
40e2b5b4d13792ed7c46a1d22afcf6c12ac9c679
Fixed
a075161392496629531812ff00762259aae03a98
Introduced
00dcbf2eeb3fd18ed39148e4bc9e49a5b35cae0c
Fixed
31c25e2e85704f12facd9b4b823aa54b943251eb
Introduced
862d27f25c4d3bf2fe2918b76759f3f4a83563d1
Fixed
3013982f754ee0adf3f4258d5ce763f98f9c0ba3
Fixed
5f36274da3f961430ae72865159afa02a1dd9133
Database specific 
{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "19.2.25"
        },
        {
            "introduced": "20.0.0"
        },
        {
            "fixed": "20.3.25"
        },
        {
            "introduced": "21.0.0"
        },
        {
            "fixed": "21.2.17"
        },
        {
            "introduced": "22.0.0"
        },
        {
            "fixed": "22.0.1"
        }
    ]
}

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-next.0
18.2.0-next.1
18.2.0-next.2
18.2.0-next.3
18.2.0-next.4
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-next.0
19.2.0-next.1
19.2.0-next.2
19.2.0-next.3
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
v20.*
v20.3.16
v20.3.17
v20.3.18
v20.3.19
v20.3.20
v20.3.21
v20.3.22
v20.3.23
v20.3.24
v21.*
v21.1.0-next.2
v21.1.0-next.3
v21.1.0-next.4
v21.2.0
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
v21.2.1
v21.2.10
v21.2.11
v21.2.12
v21.2.13
v21.2.14
v21.2.15
v21.2.16
v21.2.2
v21.2.3
v21.2.4
v21.2.5
v21.2.6
v21.2.7
v21.2.8
v21.2.9
v22.*
v22.0.0-next.0
v22.0.0-next.1
v22.0.0-next.10
v22.0.0-next.2
v22.0.0-next.3
v22.0.0-next.4
v22.0.0-next.5
v22.0.0-next.6
v22.0.0-next.7
v22.0.0-next.8
v22.0.0-next.9
v22.0.1
vsix-21.*
vsix-21.2.0
vsix-21.2.1
vsix-21.2.2
vsix-21.2.3
vsix-21.2.4
vsix-22.*
vsix-22.0.0
vsix-included-21.*
vsix-included-21.2.4
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-0.16.1
zone.js-0.16.2
zone.js-0.9.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54266.json"