143 lines
6.7 KiB
JSON
143 lines
6.7 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-2026-33397",
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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": "2026-03-19T17:02:34.169Z",
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"datePublished": "2026-03-26T13:46:16.145Z",
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"dateUpdated": "2026-03-30T14:56:05.822Z"
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},
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"containers": {
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"cna": {
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"title": "Angular SSR Vulnerable to Protocol-Relative URL Injection via Single Backslash Bypass",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-601",
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"lang": "en",
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"description": "CWE-601: URL Redirection to Untrusted Site ('Open Redirect')",
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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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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "LOW",
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"subIntegrityImpact": "LOW",
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"subAvailabilityImpact": "NONE",
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"baseScore": 6.9,
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
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"version": "4.0"
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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/angular/angular-cli/security/advisories/GHSA-vfx2-hv2g-xj5f",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/angular/angular-cli/security/advisories/GHSA-vfx2-hv2g-xj5f"
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},
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{
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"name": "https://github.com/angular/angular-cli/pull/32771",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/angular/angular-cli/pull/32771"
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},
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{
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"name": "https://github.com/advisories/GHSA-xh43-g2fq-wjrj",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/advisories/GHSA-xh43-g2fq-wjrj"
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}
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],
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"affected": [
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{
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"vendor": "angular",
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"product": "angular-cli",
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"versions": [
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{
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"version": ">= 22.0.0-next.0, < 22.0.0-next.2",
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"status": "affected"
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},
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{
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"version": ">= 21.0.0-next.0, < 21.2.3",
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"status": "affected"
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},
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{
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"version": ">= 20.0.0-next.0, < 20.3.21",
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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": "2026-03-26T13:46:16.145Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "The Angular SSR is a server-rise rendering tool for Angular applications. Versions on the 22.x branch prior to 22.0.0-next.2, the 21.x branch prior to 21.2.3, and the 20.x branch prior to 20.3.21 have an Open Redirect vulnerability in `@angular/ssr` due to an incomplete fix for CVE-2026-27738. While the original fix successfully blocked multiple leading slashes (e.g., `///`), the internal validation logic fails to account for a single backslash (`\\`) bypass. When an Angular SSR application is deployed behind a proxy that passes the `X-Forwarded-Prefix` header, an attacker provides a value starting with a single backslash, the internal validation failed to flag the single backslash as invalid, the application prepends a leading forward slash, resulting in a `Location` header containing the URL, and modern browsers interpret the `/\\` sequence as `//`, treating it as a protocol-relative URL and redirecting the user to the attacker-controlled domain. Furthermore, the response lacks the `Vary: X-Forwarded-Prefix` header, allowing the malicious redirect to be stored in intermediate caches (Web Cache Poisoning). Versions 22.0.0-next.2, 21.2.3, and 20.3.21 contain a patch. Until the patch is applied, developers should sanitize the `X-Forwarded-Prefix` header in their `server.ts` before the Angular engine processes the request."
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}
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],
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"source": {
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"advisory": "GHSA-vfx2-hv2g-xj5f",
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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": "2026-03-30T13:54:22.310595Z",
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"id": "CVE-2026-33397",
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"options": [
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{
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"Exploitation": "none"
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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": "partial"
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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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}
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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": "2026-03-30T14:56:05.822Z"
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}
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}
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]
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}
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} |