CVE-2026-66300

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Source
https://cve.org/CVERecord?id=CVE-2026-66300
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66300.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-66300
Published
2026-08-04T18:51:27.626Z
Modified
2026-08-06T08:28:42.284781Z
Severity
  • 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
SNOMED International Snowstorm reflected XSS
Details

SNOMED International Snowstorm contains a reflected XSS vulnerability within the "Web Route" redirection functionality. An attacker can inject arbitrary JavaScript which will execute upon a target user navigating to a crafted, malicious link. Fixed in 10.12.2 and 10.9.3.

Database specific 
{
    "cna_assigner": "cisa-cg",
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66300.json"
}
References

Affected packages

Git / github.com/ihtsdo/snowstorm

Affected ranges

Type
GIT
Repo
https://github.com/ihtsdo/snowstorm
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
575b555695811110dafe2fcea7dd2fd7e4bcee39
Fixed
b8061add427c930b3030549e77aa23ec5957ceb6
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "7.0.0"
        },
        {
            "fixed": "10.12.2"
        }
    ]
}

Affected versions

1.*
1.0.0-alpha
1.1.0-alpha
10.*
10.1.0
10.10.1
10.11.2
10.12.0
10.12.1
10.2.1
10.3.1
10.4.2
10.5.0
10.5.1
10.6.0
10.6.1
10.7.0
10.8.0
10.8.1
10.8.2
10.9.0
10.9.1
2.*
2.1.0
2.2.0
2.2.1
2.2.2
2.2.3
3.*
3.0.3
4.*
4.1.0
4.10.0
4.10.1
4.10.2
4.11.0
4.12.0
4.12.1
4.12.2
4.13.0
4.3.0
4.3.1
4.3.2
4.3.3
4.4.0
4.5.0
4.5.1
4.7.1
4.7.2
4.8.0
4.9.0
4.9.1
4.9.2
4.9.3
5.*
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.0.7
5.0.8
5.1.0
6.*
6.0.3
6.1.0
6.2.0
6.2.1
7.*
7.1.2
7.10.0
7.11.0
7.12.0
7.2.0
7.3.0
7.4.0
7.4.1
7.5.1
7.5.3
7.5.4
7.6.0
7.7.0
7.8.0
7.9.0
7.9.1
7.9.2
7.9.3
8.*
8.0.0
8.1.0
8.2.2
8.3.0
9.*
9.2.0

Database specific

vanir_signatures_modified 
"2026-08-06T08:28:42Z"
vanir_signatures 
[
    {
        "target": {
            "file": "src/main/java/org/snomed/snowstorm/rest/WebRouteController.java"
        },
        "digest": {
            "line_hashes": [
                "312121057209247412561371746165427801910",
                "123767059360933163767147935243888121600",
                "245015302850170211236757456522837854582",
                "265694949697940524124620988879311909521",
                "194411002063778391076307791763018993394",
                "241092865177827865429717117285236448938",
                "173215006743254760077072466821569263509",
                "105162729147787610127422201836441706337",
                "285161036326361483053192775125343555417",
                "156223145217900194020324385190719278086",
                "132512299102570733574836108290291065542",
                "220616026381048562317001045910114325221",
                "121977656371723106385613621269169436800",
                "295273920552171663191117767466069287522"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "signature_type": "Line",
        "deprecated": false,
        "id": "CVE-2026-66300-2ad16563",
        "source": "https://github.com/ihtsdo/snowstorm/commit/575b555695811110dafe2fcea7dd2fd7e4bcee39"
    },
    {
        "target": {
            "function": "issueRedirect",
            "file": "src/main/java/org/snomed/snowstorm/rest/WebRouteController.java"
        },
        "digest": {
            "length": 617.0,
            "function_hash": "66705611246460464664973953452139273591"
        },
        "signature_version": "v1",
        "signature_type": "Function",
        "deprecated": false,
        "id": "CVE-2026-66300-4bbd4d38",
        "source": "https://github.com/ihtsdo/snowstorm/commit/b8061add427c930b3030549e77aa23ec5957ceb6"
    },
    {
        "target": {
            "file": "src/main/java/org/snomed/snowstorm/rest/WebRouteController.java"
        },
        "digest": {
            "line_hashes": [
                "312121057209247412561371746165427801910",
                "123767059360933163767147935243888121600",
                "245015302850170211236757456522837854582",
                "265694949697940524124620988879311909521",
                "194411002063778391076307791763018993394",
                "241092865177827865429717117285236448938",
                "173215006743254760077072466821569263509",
                "105162729147787610127422201836441706337",
                "285161036326361483053192775125343555417",
                "156223145217900194020324385190719278086",
                "132512299102570733574836108290291065542",
                "220616026381048562317001045910114325221",
                "121977656371723106385613621269169436800",
                "295273920552171663191117767466069287522"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "signature_type": "Line",
        "deprecated": false,
        "id": "CVE-2026-66300-83dd5f56",
        "source": "https://github.com/ihtsdo/snowstorm/commit/b8061add427c930b3030549e77aa23ec5957ceb6"
    },
    {
        "target": {
            "function": "issueRedirect",
            "file": "src/main/java/org/snomed/snowstorm/rest/WebRouteController.java"
        },
        "digest": {
            "length": 617.0,
            "function_hash": "66705611246460464664973953452139273591"
        },
        "signature_version": "v1",
        "signature_type": "Function",
        "deprecated": false,
        "id": "CVE-2026-66300-adaee01a",
        "source": "https://github.com/ihtsdo/snowstorm/commit/575b555695811110dafe2fcea7dd2fd7e4bcee39"
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66300.json"