560 lines
26 KiB
JSON
560 lines
26 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-33937",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-03-24T19:50:52.103Z",
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"datePublished": "2026-03-27T21:03:46.748Z",
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"dateUpdated": "2026-09-04T12:04:45.273Z"
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},
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"containers": {
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"cna": {
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"title": "Handlebars.js has JavaScript Injection via AST Type Confusion",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-843",
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"lang": "en",
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"description": "CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-94",
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"lang": "en",
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"description": "CWE-94: Improper Control of Generation of Code ('Code Injection')",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/handlebars-lang/handlebars.js/security/advisories/GHSA-2w6w-674q-4c4q",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/handlebars-lang/handlebars.js/security/advisories/GHSA-2w6w-674q-4c4q"
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},
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{
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"name": "https://github.com/handlebars-lang/handlebars.js/commit/68d8df5a88e0a26fe9e6084c5c6aaebe67b07da2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/handlebars-lang/handlebars.js/commit/68d8df5a88e0a26fe9e6084c5c6aaebe67b07da2"
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},
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{
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"name": "https://github.com/handlebars-lang/handlebars.js/releases/tag/v4.7.9",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/handlebars-lang/handlebars.js/releases/tag/v4.7.9"
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}
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],
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"affected": [
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{
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"vendor": "handlebars-lang",
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"product": "handlebars.js",
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"versions": [
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{
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"version": ">= 4.0.0, < 4.7.9",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-03-27T21:03:46.748Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Handlebars provides the power necessary to let users build semantic templates. In versions 4.0.0 through 4.7.8, `Handlebars.compile()` accepts a pre-parsed AST object in addition to a template string. The `value` field of a `NumberLiteral` AST node is emitted directly into the generated JavaScript without quoting or sanitization. An attacker who can supply a crafted AST to `compile()` can therefore inject and execute arbitrary JavaScript, leading to Remote Code Execution on the server. Version 4.7.9 fixes the issue. Some workarounds are available. Validate input type before calling `Handlebars.compile()`; ensure the argument is always a `string`, never a plain object or JSON-deserialized value. Use the Handlebars runtime-only build (`handlebars/runtime`) on the server if templates are pre-compiled at build time; `compile()` will be unavailable."
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}
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],
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"source": {
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"advisory": "GHSA-2w6w-674q-4c4q",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-03-31T00:00:00+00:00",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3",
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"id": "CVE-2026-33937"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-04-01T03:55:43.931Z"
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}
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{
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"version": "1782839279",
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|
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|
|
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|
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|
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{
|
|
"name": "RHBZ#2452523",
|
|
"tags": [
|
|
"issue-tracking",
|
|
"x_refsource_REDHAT"
|
|
],
|
|
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452523"
|
|
},
|
|
{
|
|
"tags": [
|
|
"x_sadp-csaf-vex"
|
|
],
|
|
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33937.json"
|
|
},
|
|
{
|
|
"tags": [
|
|
"vendor-advisory",
|
|
"x_refsource_REDHAT"
|
|
],
|
|
"url": "https://access.redhat.com/errata/RHSA-2026:34342"
|
|
},
|
|
{
|
|
"tags": [
|
|
"vendor-advisory",
|
|
"x_refsource_REDHAT"
|
|
],
|
|
"url": "https://access.redhat.com/errata/RHSA-2026:10175"
|
|
}
|
|
],
|
|
"solutions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "RHSA-2026:34342: Cluster Observability Operator 1.5.0"
|
|
},
|
|
{
|
|
"lang": "en",
|
|
"value": "RHSA-2026:10175: Red Hat OpenShift Dev Spaces 3.27"
|
|
}
|
|
],
|
|
"timeline": [
|
|
{
|
|
"lang": "en",
|
|
"time": "2026-03-27T22:02:50.619Z",
|
|
"value": "Reported to Red Hat."
|
|
},
|
|
{
|
|
"lang": "en",
|
|
"time": "2026-03-27T21:03:46.748Z",
|
|
"value": "Made public."
|
|
}
|
|
],
|
|
"title": "handlebars.js: Handlebars: Remote Code Execution via crafted Abstract Syntax Tree object in compile()",
|
|
"workarounds": [
|
|
{
|
|
"lang": "en",
|
|
"value": "To mitigate this issue, ensure that any input provided to the `Handlebars.compile()` function is strictly validated to be a string type, preventing the injection of crafted Abstract Syntax Tree (AST) objects. Additionally, for deployments where templates are pre-compiled at build time, consider utilizing the Handlebars runtime-only build (`handlebars/runtime`). This build variant does not include the `compile()` function, thereby eliminating the attack vector. If the application is a service, a restart may be required for the changes to take effect."
|
|
}
|
|
],
|
|
"x_adpType": "supplier",
|
|
"x_generator": {
|
|
"engine": "sadp-cli 1.0.0"
|
|
},
|
|
"providerMetadata": {
|
|
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
|
|
"shortName": "redhat-SADP",
|
|
"dateUpdated": "2026-09-04T12:04:45.273Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |